<p><b>The USBKill has evolved.</b> The new V4 hardware framework enables advanced functionality and performance.</p>
<!--<p>USBKill V4 Kits are designed to hit the ground running, and include the V4 itself, adapters, testers and additional hardware in a sturdy tool-kit.</p>//-->
<div class="purchase-summary">
<b>Included with every USBKill V4 Kit:</b>
<ul>
<li>
<i style="color: #f00;" class="fal fa-toolbox" aria-hidden="true"></i> <b>Tool Case</b>: To protect your gear</li>
<li>
<i style="color: #f00;" class="fal fa-shield-check" aria-hidden="true"></i> <b>Purchase Protection</b>: Money Back Guarantee</li>
<li>
<i style="color: #f00;" class="fal fa-shipping-fast" aria-hidden="true"></i><b>Free world-wide shipping</b>: Tracked & Express Options</li>
</ul>
</div>
<!--SPLIT--><hr class="bolt">
<section data-animation="group">
<h3>The most powerful USBKill, batteries included.<br>
</h3>
<p>The USBKill has evolved beyond a simple plug-and-zap device. Aside from more powerful discharges and improved stability, the V4 has an internal, rechargeable battery, which allows for "Offline Attacks" - where the host device is not turned on.</p>
<p>The USBKill V4 comes in two kits:<b data-animation-effect="highlight">Basic/Pro Kit</b> and <b data-animation-effect="highlight">Tactical Kit</b> - depending on your requirements. The Basic/Pro kits are designed for individual users or small business, and contain the USBKill of your choice, basic adapters, tester, accessories and a tool-case. The Tactical kits are built for commercial / industrial clients, and contain <i>everything</i> - all V4 types, testers, adapters, remotes and accessories.</p>
</section>
<div class="pricing-container">
<div class="panel pricing-table">
<div class="pricing-plan">
<img src="https://cdn.shopify.com/s/files/1/0417/4941/4040/files/USBKill-V4-ProKit-cropped_600x600.png?v=1598279861" class="pricing-img" alt="">
<h2 class="pricing-header">Basic/Pro Kit</h2>
<ul class="pricing-features">
<li class="pricing-features-item">USBKill Basic or Pro</li>
<li class="pricing-features-item">Basic Adapter Pack<br> <span class="lower">(USB-C, Lightning, MicroUSB, MiniUSB, USB-A Female)</span>
</li>
<li class="pricing-features-item">USBKill V4 Shield / Tester</li>
<li class="pricing-features-item">Trigger Ring</li>
<li class="pricing-features-item">Professional Tool-Case</li>
<li class="pricing-features-item">Free World-Wide Shipping</li>
<li class="pricing-features-item">10% Discount</li>
</ul>
<span class="pricing-price"><sub>From</sub> β¬99.95 <sup>10% Discount</sup></span> <span class="pricing-summary">Perfect for individual or small-business users. Contains all the accessories and adapters necessary for most devices.</span> <a href="/cart/add?id=32836116578386" class="button">Buy Pro Now</a>
</div>
<div class="pricing-plan">
<img src="https://cdn.shopify.com/s/files/1/2190/5915/products/USBKill-V4-Tactical-Kit-Cropped_600x600.png?v=1612023679" alt="" data-mce-fragment="1" data-mce-src="https://cdn.shopify.com/s/files/1/2190/5915/products/USBKill-V4-Tactical-Kit-Cropped_600x600.png?v=1612023679"><br>
<h1 class="pricing-header">Tactical Kit</h1>
<ul class="pricing-features">
<li class="pricing-features-item">USBKill V4 Pro</li>
<li class="pricing-features-item">USBKill V4 Classic</li>
<li class="pricing-features-item">Basic Adapter Kit<br> <span class="lower">(USB-C, Lightning, MicroUSB, MiniUSB, USB-A Female)</span>
</li>
<li class="pricing-features-item">Advanced Adapter Kit<br> <span class="lower">(USB-B Male, USB-B Female, VGA (DB15), HDMI Male, HDMI Female-Female, DisplayPort Male, DisplayPort Female-Female, RJ45 Male, RJ-45 Female)></span>
</li>
<li class="pricing-features-item">2x USBKill V4 Shield / Tester</li>
<li class="pricing-features-item">Remote Control Trigger (up to 100m range)</li>
<li class="pricing-features-item">2x Magnetic Triggers</li>
<li class="pricing-features-item">Professional Tool-Case</li>
<li class="pricing-features-item">Free World-Wide Shipping</li>
<li class="pricing-features-item">β¬99 off!</li>
</ul>
<span class="pricing-price">β¬299.95 <sup>β¬99 Discount</sup></span> <span class="pricing-summary">The ultimate USBKill V4 Kit for professionals, with tools, adapters and accessories for every conceivable use-case and scenario.</span> <a href="/cart/add?id=32836116611154" class="button">Buy Tactical Now</a>
</div>
</div>
</div>
<hr class="bolt">
<div class="container">
<div class="row">
<div class="col-6 col-12-sm">
<h2 class="left">Why go Pro?</h2>
<p>While the Classic and Basic versions are "Plug-and-Zap" devices, the <b>Pro</b> Edition of the USBKill V4 is stress-testing mega-tool with years of development inside one tiny, covert device.</p>
<section data-animation="group">
<p>The V4 Pro has two fundamental delivery modes: <b>single pulse</b> and <b>continuous pulse</b>. The V4 Pro can be configured wirelessly (via smartphone) to be triggered in multiple ways:</p>
<ul>
<li>
<b data-animation-effect="highlight">Remote Trigger</b>: Trigger a single or continuous attack via dedicated remote control, up to 100m away from the device.</li>
<li>
<b data-animation-effect="highlight">Smartphone Trigger</b>: Control and trigger single or continuous attacks via the included <a href="/files/USBKill-Latest.apk">Android smartphone app</a> or <a href="https://apps.apple.com/us/app/usbkill/id1610839074">iOS App</a>.
</li>
<li>
<b data-animation-effect="highlight">Timed Attack:</b> Schedule a date and time when the USBKill will trigger. The V4 can stay dormant without power for over 200 days.</li>
<li>
<b data-animation-effect="highlight">Magnetic Trigger</b>: Trigger the USBKill with a magnet (stylish and covert magnetic ring included) by passing your hand over the device.</li>
<li>
<b data-animation-effect="highlight">Classic Mode</b>: Triggers the instant it is plugged into a USB drive.</li>
</ul>
</section>
</div>
<div class="col-6 col-12-sm">
<h2 class="left">Supersize your V4 π</h2>
<p>The USBKill Device is only one piece in the USBKill V4 Ecosystem.<br> Equally important are adaptors (Plug the USBKill into any device), the USB Shield / Tester (Detect and protect against USB Power Attacks), and other accessories (Remote Control, Trigger Rings, Advanced Adapters, etc)</p>
<p>The USBKill Kits contain everything you need, whether you're an individual or a industrial entity. All kits come in a sturdy tool-case.</p>
<section data-animation="group">
<p><b data-animation-effect="highlight">Basic/Pro/Classic Kit</b> - The V4 of your choice, USBKill Shield / Tester and all the must-have adapters in a sturdy tool-case - with an <b>instant 10% reduction</b></p>
<p><b data-animation-effect="highlight">Advanced Adapter Kit</b> - Test absolutely everything from phones to fax machines to flight systems.</p>
<p><b data-animation-effect="highlight" data-animation-color="#ff9353">Tactical Kit</b> - Two USBKill V4 Devices (Pro and Classic), all accessories (Basic and Advanced), Remote Control, Trigger Rings and a high-quality toolcase. Instant <b>β¬100 discount!</b></p>
<p>Buy your USBKill V4 Kit now - and enjoy free, world-wide tracked shipping.</p>
<p> </p>
<center><a href="/cart/add?id=32836116578386" class="button">Buy Now</a></center></section>
</div>
</div>
</div>
<hr class="bolt">
<p> </p>
<h3>Get to know the V4 Kits π€π»</h3>
Over the last <b>five years</b> since the USBKill 1.0 was released, the USBKill has been deployed in thousands of tests in dozens of industries. In-Flight Entertainment systems have been tested and secured against malicious attacks. Life-critical medical systems have been rigorously tested to ensure they are hardened against Power Surge Attacks. Dozens of electronic locks and access control systems have had their "open on system failure" modes confirmed. Pentesters and law-enforcement regularly deploy USBKill as part of their testing and intervention scenarios.
<p>We breakdown each kit, USBKill, accessory and adaptor in our detailed introduction videos below.</p>
<h4></h4>
<h4>USBKill V4 Testing Video<br>
</h4>
<p><iframe src="https://www.youtube.com/embed/V6SpLvn1Alk" allowfullscreen="" width="1231" height="702" frameborder="0"></iframe></p>
<h4>USBKill V4 Introduction Video</h4>
<iframe src="https://www.youtube.com/embed/N-gsVm817Pc" allowfullscreen="" width="1660" height="943" frameborder="0"></iframe>
<h4>USBKill V4 Pro Kit: Product Presentation<br>
</h4>
<iframe src="https://www.youtube.com/embed/0CvXzqcOjHI" allowfullscreen="" width="1231" height="702" frameborder="0"></iframe>
<h4>USBKill V4 Tactical Kit Presentation<br>
</h4>
<p><iframe src="https://www.youtube.com/embed/7a72aFxf3ks" allowfullscreen="" width="1231" height="702" frameborder="0"></iframe></p>
<h4>USBKill V4 - Basic Kit Introduction</h4>
<p><iframe src="https://www.youtube.com/embed/INvS4RZ53_Q" allowfullscreen="" width="1231" height="702" frameborder="0"></iframe></p>
<hr class="bolt">
<h4>USBKill V4 Media Gallery</h4>
<div class="container">
<div id="lightgallery">
<a href="https://cdn.shopify.com/s/files/1/2190/5915/files/V4-Pro-Lit_grande.jpeg?v=1600173507"><img src="https://cdn.shopify.com/s/files/1/2190/5915/files/V4-Pro-Lit_270x270_crop_center@2x.jpeg?v=1600173507"></a> <a href="https://cdn.shopify.com/s/files/1/2190/5915/files/V4-Profile.png?v=1600173428"><img src="https://cdn.shopify.com/s/files/1/2190/5915/files/V4-Profile_270x270_crop_center@2x.png?v=1600173428"></a> <a href="https://cdn.shopify.com/s/files/1/2190/5915/files/V4-Kit-Gold.jpg?v=1600173428"><img src="https://cdn.shopify.com/s/files/1/2190/5915/files/V4-Kit-Gold_270x270_crop_center@2x.jpg?v=1600173428"></a> <a href="https://cdn.shopify.com/s/files/1/2190/5915/files/USBKill-V4-Blue-Light.jpeg?v=1600173427"><img src="https://cdn.shopify.com/s/files/1/2190/5915/files/USBKill-V4-Blue-Light_270x270_crop_center@2x.jpeg?v=1600173428"></a> <a href="https://cdn.shopify.com/s/files/1/2190/5915/files/USBKill-Family.jpg?v=1600173449"><img src="https://cdn.shopify.com/s/files/1/2190/5915/files/USBKill-Family_270x270_crop_center@2x.jpg?v=1600173428"></a> <a href="https://cdn.shopify.com/s/files/1/2190/5915/files/USBKill-All-Kits-Open.jpg?v=1600173449"><img src="https://cdn.shopify.com/s/files/1/2190/5915/files/USBKill-All-Kits-Open_270x270_crop_center@2x.jpg?v=1600173428"></a> <a href="https://cdn.shopify.com/s/files/1/2190/5915/files/Going-Tactical.jpeg?v=1600173428"><img src="https://cdn.shopify.com/s/files/1/2190/5915/files/Going-Tactical_270x270_crop_center@2x.jpeg?v=1600173428"></a> <a href="https://cdn.shopify.com/s/files/1/2190/5915/files/V4-Basic.jpeg?v=1600173428"><img src="https://cdn.shopify.com/s/files/1/2190/5915/files/V4-Basic_270x270_crop_center@2x.jpeg?v=1600173428"></a> <a href="https://cdn.shopify.com/s/files/1/2190/5915/files/Pro-kit-colour.jpg?v=1600174516"><img src="https://cdn.shopify.com/s/files/1/2190/5915/files/Pro-kit-colour_270x270_crop_center@2x.jpg?v=1600173428"></a>
</div>
</div>
<hr class="bolt">
<h2>π Frequently Asked Questions</h2>
<p>There are three versions of the USBKill V4; each version has different operation modes.</p>
<p>The capabilities and default configuration for each device is shown below:</p>
<style type="text/css"><!--
.tg {border-collapse:collapse;border-spacing:0; box-shadow: 0px 10px 13px -6px rgba(0,0,0,0.08),0px 20px 31px 3px rgba(0,0,0,0.09),0px 8px 20px 7px rgba(0,0,0,0.02); margin: 1em 0px 2em 0px; }
.tg td{padding:15px 5px;word-break:normal;text-align:center;vertical-align:middle;}
.tg th{background-color: #fff; border-bottom: 1px solid #d8232f !important; padding:10px 5px;word-break:normal;}
.tg .tg-km2t{border-color:#ffffff;font-weight:bold;text-align:center;vertical-align:top}
.tg .tg-zv4m{ }
.tg .border-right {border-right: 1px solid #d8232f !important; }
--></style>
<div>
<table class="tg">
<thead>
<tr>
<th class="tg-km2t">Device</th>
<th class="tg-km2t">Default Mode</th>
<th class="tg-zv4m">Classic Mode</th>
<th class="tg-zv4m">Magnetic Trigger</th>
<th class="tg-zv4m">Alarm Trigger</th>
<th class="tg-zv4m">Bluetooth</th>
<th class="tg-zv4m">Smartphone Trigger</th>
<th class="tg-zv4m">Remote Trigger</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tg-km2t border-right">V4 Basic<br>
</td>
<td class="tg-zv4m">Magnetic Trigger</td>
<td class="tg-zv4m"><br></td>
<td class="tg-zv4m">π΄</td>
<td class="tg-zv4m"><br></td>
<td class="tg-zv4m"><br></td>
<td class="tg-zv4m"><br></td>
<td class="tg-zv4m"><br></td>
</tr>
<tr>
<td class="tg-km2t border-right">V4 Pro</td>
<td class="tg-zv4m">Magnetic Trigger</td>
<td class="tg-zv4m">π΄</td>
<td class="tg-zv4m">π΄</td>
<td class="tg-zv4m">π΄</td>
<td class="tg-zv4m">π΄</td>
<td class="tg-zv4m">π΄</td>
<td class="tg-zv4m">π΄</td>
</tr>
<tr>
<td class="tg-km2t border-right">V4 Classic</td>
<td class="tg-zv4m">Classic Mode</td>
<td class="tg-zv4m">π΄</td>
<td class="tg-zv4m"><br></td>
<td class="tg-zv4m"><br></td>
<td class="tg-zv4m"><br></td>
<td class="tg-zv4m"><br></td>
<td class="tg-zv4m"><br></td>
</tr>
</tbody>
</table>
<p>Each product has specific functionalities - please click below for detailed information on each product.</p>
</div>
<ul class="tabs">
<li class="active">Pro Version</li>
<li>Basic Version</li>
<li>Classic Version</li>
</ul>
<ul class="tabs-content">
<li class="active">
<h3>How do you use the USBKill V4 Pro?</h3>
<section data-animation="group">
<p>The USBKill V4 Pro can has multiple <b data-animation-effect="highlight">trigger modes</b> and two <b data-animation-effect="highlight" data-animation-color="#e74646">delivery modes</b>.</p>
<p>A <b data-animation-effect="highlight" data-animation-color="#e74646">delivery mode</b> is what the device does when triggered:</p>
<ul>
<li>
<b data-animation-effect="underline" data-animation-color="#e74646">Single Pulse</b>: The USBKill V4 sends one Pulse (5 discharges).</li>
<li>
<b data-animation-effect="underline" data-animation-color="#e74646">Continuous Pulse</b>: The USBKill V4 sends continuous pulses, until stopped.</li>
</ul>
<p>A <b data-animation-effect="highlight">trigger mode</b> is how the device is triggered. Certain <b>trigger modes</b> must configured via the <a href="/files/USBKill-Latest.apk"><b>USBKill Android Application</b></a> or <a href="https://apps.apple.com/us/app/usbkill/id1610839074">iOS App</a>.</p>
<ul>
<li>
<b data-animation-effect="underline">Remote Trigger</b>: Trigger a single or continuous attack via the USBKill Remote, up to 100m away from the device.</li>
<li>
<b data-animation-effect="underline">Smartphone Trigger</b>: Control and trigger single or continuous attacks via the included <a href="/files/USBKill-Latest.apk">Android smartphone app</a> or <a href="https://apps.apple.com/us/app/usbkill/id1610839074">iOS App</a>.
</li>
<li>
<b data-animation-effect="underline">Timed Attack:</b> Schedule a date and time when the USBKill will trigger. The V4 can stay dormant without power for over 200 days. Requires the <a href="/files/USBKill-Latest.apk">Android Application</a> or <a href="https://apps.apple.com/us/app/usbkill/id1610839074">iOS App</a>.
</li>
<li>
<b data-animation-effect="underline">Magnetic Trigger</b>: Trigger the USBKill with a magnet (stylish and covert magnetic ring included) by passing your hand over the device. Requires the Trigger Ring.</li>
<li>
<b data-animation-effect="underline">Classic Mode</b>: Triggers the instant it is plugged into a USB drive. Requires the <a href="/files/USBKill-Latest.apk">Android Application</a> or <a href="https://apps.apple.com/us/app/usbkill/id1610839074">iOS App</a>.
</li>
</ul>
</section>
<p>The following trigger modes require <b>no Application configuration</b>:</p>
<ul>
<li>Remote Trigger</li>
<li>Magnetic Trigger</li>
</ul>
<h3>How do you recharge the USBKill V4 Pro?</h3>
<p>The USBKill V4 Pro can be recharged via any USB power supply (charger, battery bank, etc).<br> <b>IMPORTANT</b>: Take care not to trigger the USBKill device while it is charging. We recommend <i>always</i> charging the USBKill V4 Pro with the USBKill Shield to avoid accidental discharges.</p>
<h3>How many times can the USBKill V4 Pro be used?</h3>
<p>Unlimited times. The device can be recharged and re-used as many times as required.</p>
<h3>I changed the Bluetooth Name / Password, and my Remote Control doesn't work.</h3>
<p><b>Important:</b> If you update the Bluetooth Name or PIN code for your USBKill V4 Pro, you must <b>also update the PIN in the USBKill V4 Remote Control</b>.</p>
<p><span style="color: #ca0000;"><strong>WARNING:</strong> <strong>There is no way to recover a lost PIN code.</strong></span><br> A lost PIN code requires disassembling the USBKill device and performing a hard reset. This is a delicate operation and not covered by warranty.</p>
<p><b>To update the Bluetooth name and PIN Code for your remote control</b>:</p>
<ol>
<li>Download the drivers + utility: <a href="https://usbkill.com/files/USBKill-V4-Remote-Tool.zip">https://usbkill.com/files/USBKill-V4-Remote-Tool.zip</a>
</li>
<li>Install the driver of cp2104 for remote.</li>
<li>Turn off the power of the remote , press and hold the middle button to insert USB into the computer.</li>
<li>When the two lights of the remote control flash slowly at the same time, it indicates that the configuration mode has been entered.</li>
<li>Open the tools on the computer, and the COM port will be searched automatically. If you can't connect, please check the correct com number and select it manually.</li>
<li>Set the new name and password, which is consistent with the USBKILLV4 device. The remote control will automatically connect to the device with a new name and password every time.</li>
</ol>
<b>Bluetooth Settings Tips:</b><br>
<ul>
<li>BLE name length is less than 26 bits, ignoring case.</li>
<li>BLE password length is 4 bits, and both numbers and letters can be used.</li>
<li>BLE name can be left blank, and USBKILLV4 device with the same empty name will be searched automatically. The USBKILLV4 device can be effectively hidden by setting an empty name.</li>
<li>Default name of the remote is: "usbkiller", password:"8888".</li>
</ul>
<h3>I changed my Bluetooth PIN Code and forgot the new one.</h3>
<p><span style="color: #ca0000;"><strong>WARNING:</strong> <strong>There is no way to recover a lost PIN code for security reasons.</strong></span><br> A lost PIN code requires disassembling the USBKill device and performing a hard reset. This is a delicate operation and not covered by warranty.</p>
<h3>USBKill V4: Application Walkthrough</h3>
<p>The following video walks through configuring each <b>trigger mode</b> and <b>delivery mode</b> in the <a href="/files/USBKill-Latest.apk">Android Application.</a></p>
<p><iframe src="https://www.youtube.com/embed/vSRXUn_wBFY" allowfullscreen="" width="1182" height="537" frameborder="0"></iframe></p>
<h3>USBKill V4: Apple App Walkthrough</h3>
<p>The following video walks through configuring each <b>trigger mode</b> and <b>delivery mode</b> in the <a href="https://apps.apple.com/us/app/usbkill/id1610839074"><b>USBKill Apple App Store Application.</b></a></p>
<p><iframe src="https://www.youtube.com/embed/drwMMtTz28I" allowfullscreen="" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" width="1182" height="537" frameborder="0"></iframe></p>
<h3>What are the technical specifications of the USBKill V4 Pro?</h3>
<ul>
<li>
<b>V4 Output Voltage:</b> -215V</li>
<li>
<b>Offline Mode Pulse Frequency:</b> 1Hz</li>
<li>
<b>Offline Mode Max Duration:</b> Unlimited</li>
<li>
<b>Host Power Mode Pulse Frequency:</b> 8Hz</li>
<li>
<b>Host Power Mode Max Duration:</b> 300 Cycles</li>
<li>
<b>Battery Charge Time:</b> 2h</li>
<li>
<b>Standby / Deep Sleep:</b> 150 - 200 days</li>
</ul>
</li>
<li>
<h3>How do you use the USBKill V4 Basic?</h3>
<p>The USBKill V4 Basic is triggered via the Magnetic Trigger.</p>
<p>Plug the USBKill V4 Basic into the target device, and then place the Trigger Ring on the USBKill V4 Basic.</p>
<p>It will immediately trigger a single pulse (5 discharges).</p>
<h3>How do you recharge the USBKill V4 Basic?</h3>
<p>The USBKill V4 Pro can be recharged via any USB power supply (charger, battery bank, etc).<br> <b>IMPORTANT</b>: Take care not to trigger the USBKill device while it is charging. We recommend <i>always</i> charging the USBKill V4 Pro with the USBKill Shield to avoid accidental discharges.</p>
<h3>How many times can the USBKill V4 Pro be used?</h3>
<p>Unlimited times. The device can be recharged and re-used as many times as required.</p>
<h3>What are the technical specifications of the USBKill V4 Basic?</h3>
<p> </p>
<ul>
<li>
<b>V4 Output Voltage:</b> -215V</li>
<li>
<b>Offline Mode Pulse Frequency:</b> 1Hz</li>
<li>
<b>Offline Mode Max Duration:</b> Unlimited</li>
<li>
<b>Host Power Mode Pulse Frequency:</b> 8Hz</li>
<li>
<b>Host Power Mode Max Duration:</b> 300 Cycles</li>
<li>
<b>Battery Charge Time:</b> 2h</li>
<li>
<b>Standby / Deep Sleep:</b> 150 - 200 days</li>
</ul>
</li>
<li>
<h3>How do you use the USBKill V4 Classic?</h3>
<p>The USBKill V4 Classic is a "plug-and-zap" device. As soon as it is plugged in, it will continuously deliver pulses to the host device.</p>
<p>The USBKill V4 Classic <b>has no internal battery</b> - the host device must be turned on.</p>
<h3>How many times can the USBKill V4 Classic be used?</h3>
<p>Unlimited times.</p>
<h3>Is the USBKill V4 Classic compatible with all Adaptors?</h3>
<p>No. Because the V4 Classic has no internal battery, it relies on power from the host device. Some modern devices, such as telephones will not deliver power to unauthenticated devices.</p>
<h3>What are the technical specifications of the USBKill V4 Classic?</h3>
<p> </p>
<ul>
<li>
<b>V4 Output Voltage:</b> -215V</li>
<li>
<b>Host Power Mode Pulse Frequency:</b> 8Hz</li>
<li>
<b>Host Power Mode Max Duration:</b> 300 Cycles</li>
</ul>
</li>
</ul>
<hr class="bolt"><center>
<h5>Buy your USBKill V4 Kit now - and enjoy free, world-wide tracked shipping.</h5>
<a href="/cart/add?id=32836116578386" class="button">Buy Now</a>
</center>
<ul></ul>
Save on USBKill V4 Kit with a USBKill discount code
Checkmate is a savings app with over one million users that have saved $$$ on brands like USBKill.
The Checkmate extension automatically applies USBKill discount codes, USBKill coupons and more to give you discounts on products like USBKill V4 Kit.