10 Best Usb Blocker of 2025

Tested and Reviewed: Top 10 Usb Blocker deals with expert ratings from 8.1 to a perfect 10

March 2026 Edition

Editor's Choice

9.7

JSAUX

JSAUX USB Data Blocker, (4-Pack) USB A Defender Only for Quick Charge, Protect Against Juice Jacking, Refuse Hacking Provide Safe Charging- Red

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Editor's bottom line:

“This usb blocker is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Charge Only: No data-sync function. Safely charge in public, protecting against data breaches and virusesideal for travel and business trips
2.4A Fast Charge: Delivers up to 2.4A for iPhones, iPads, Samsung devices, tablets, MP3s, and most USB devices
Metal & Non-Slip: Premium aluminum shell adds durability, protecting internal chips, while the non-slip design ensures easy insertion and removal
Compact & Portable: Lightweight and small enough to fit in your wallet or pocket, perfect for travel
No Pop-ups: JSAUX data blocker prevents any data transmission requests on your phone

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Picked by 397 people today

9.5

BUISAMG

BUISAMG Data Blocker, USB A & USB C Data Blocker for Any USB C Mobile Phone Quick Charge, Protect Against Juice Jacking, Refuse Hacking, Only Safe Charging. (4-Pack) (Red)

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Main Highlights

Combination set: More affordable, 2 pieces of USB Data Blocker & 2 pieces of USB C Data Blocker total 4 pieces, which can meet your daily use needs, suitable for any mobile phones and electronic devices with USB A and USB C interfaces.
Perfect Compatibility: We USB-A to USB-C data blocker ensures seamless data security across all your Type-C tech gadgets including iPhone 15 and 16 series, Galaxy S25 S24 S23 S22 S21 S10, USB-C iPad, Android Tablets, MacBooks, and more
PROTECT YOUR PHONE / TABLET : Think about that Traveling or going out in public areas one time when you needed a charge at an airport but were too scared to get juice jacked. That is why we brought this data blocker for you. Charge your device with this powerful USB data blocker without worrying about any hacker getting in your device.
HIGH SPEED CHARGING: USB defenders are made for blocking the hacker as well as fast charging, The 4th generation design chip can be used for the universal charging standards automatically switch to, Compatible with Various brands of smartphones, ensure compatibility with your device. and charge at up to 2.4 Amps.
to make high quality safety products:Advance manufacturing process design The metal shell material has multiple safety protection functions such as heat dissipation and fire safety, USB Data Blocker are used by the governments of the USA, Canada, UK and New Zealand as well as 100s of corporations around the world to secure their devices100% guarantee against hacker attack.

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9.5

BUISAMG

BUISAMG Data Blocker, 4-in-1 Universal USB Data Blocker, Protection from Illegal Downloading, Hacking Proof 100% Guaranteed, for iPhone 15 16 and Any USB Device Charging. 2-Pack

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Main Highlights

4-in-1 Data Blocker We have combined the USB-A to USB-C and USB-A to USB-A, USB-C to USB-A, USB-C to USB-C data blocker into one, Perfect Compatibility . 4-in-1 data blocker ensures seamless data security across all your Type-C tech gadgets
Multi functional transformation just one data blocker can meet the convenience of charging two devices at the same time. No need to worry about finding the right charging port. Supports up to 3A charging for a single device.
PROTECT YOUR PHONE / TABLET : Think about that Traveling or going out in public areas one time when you needed a charge at an airport but were too scared to get juice jacked. That is why we brought this data blocker for you. Charge your device with this powerful USB data blocker without worrying about any hacker getting in your device.
HIGH SPEED CHARGING: USB defenders are made for blocking the hacker as well as fast charging, The 4th generation design chip can be used for the universal charging standards automatically switch to, Compatible with Various brands of smartphones, ensure compatibility with your device. and charge at up to 2.4 Amps. USB C to C Support Safe Fast Charging up to 20V/4A.
to make high quality safety products:Advance manufacturing process design The metal shell material has multiple safety protection functions such as heat dissipation and fire safety, USB Data Blocker are used by the governments of the USA, Canada, UK and New Zealand as well as 100s of corporations around the world to secure their devices100% guarantee against hacker attack.
METAL QUALITY, PLEASE REST ASSURED:We make the best quality.12-Month worry free period, If you are unsatisfied with the product for any reason simply contact us and we will issue with our no hassle return policy, in use have any questions, we will resolve your issue within 24 hours.

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9.2

JSAUX

JSAUX USB Data Blocker & USB C Data Blocker (4-Pack), Transparent Type A & Type C Data Blocker Only for Charge, Protect Against Juice Jacking, Refuse Hacking Provide Safe Charging

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Main Highlights

The Ultimate Data Guardian: Are you worried about the risk of mobile phone data leakage or uploading viruses when you use a charging station to recharge? Worried about spyware or hacking attacks on your mobile device while charging? Don't worry, choosing a data blocker is an effective measure to prevent these potential risks
Only for Charging: With our USB data blocker, you can charge your device without any risk of data transfer. It acts as a smart barrier, allowing only the charging function while protecting your valuable information from potential hacking or malware threats by physically blocking data transfer and syncing. By JSAUX data blocker, your phone can never receive pop-ups for requirement of data transmission
Fast Charging for USB C Data Blocker: JSAUX USB C Data Blocker adopts PD 3.0/2.0 fast charging technology, supports 100W fast charging (20V/5A), and is also compatible with charging power of 240W/140W/60W/45W/36W/27W/15W, etc. The USB Data Blocker supports up to 2.4A charging. (NOTE: The actual charging speed depends on your device and wall charger.)
Compact and Portable: Our usb data blocker is small and lightweight. You can slip it into your pocket, bag or keychain and easily take it anywhere. Perfect for people on the go or those who use public charging stations at airports, hotels, etc. Designed with a transparent case for a more visual look and feel
USB & USB C Data Blockers 4 Pack: We offer you two USB Data Blockers and two USB C Data Blockers, compatible with iPhone 17/Air/17 Pro/17 Pro Max, iPhone 16/16 Plus/16 Pro/16 Pro Max, iPhone 15/15 Plus/15 Pro/15 Pro Max, Samsung, iPad, Macbook and other devices. Whether you are using standard USB or USB C ports, you can meet the safe charging needs

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9.0

JSAUX

JSAUX USB Data Blocker(2-Pack), Transparent 2-in-1 USB A Male to USB A & USB C Female Data Blocker Only for Charge, Protect Against Juice Jacking, Refuse Hacking Provide Safe Charging

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Main Highlights

The Ultimate Data GuardianAre you worried about the risk of mobile phone data leakage or uploading viruses when you use a charging station to recharge? Worried about spyware or hacking attacks on your mobile device while charging? Don't worry, choosing a data blocker is an effective measure to prevent these potential risks.
Only for Charging With our USB data blocker, you can charge your device without any risk of data transfer. It acts as a smart barrier, allowing only the charging function while protecting your valuable information from potential hacking or malware threats by physically blocking data transfer and syncing.
2-in-1 Data Blocker We have combined the USB A to USB C and USB A to USB A data blocker into one, just one can meet the convenience of charging two devices at the same time. No need to worry about finding the right charging port. Supports up to 3A charging for a single device. Note: Fast charging is not supported when charging two devices at the same time.
Compact and PortableOur usb data blocker is small and lightweight. You can slip it into your pocket, bag or keychain and easily take it anywhere. Perfect for people on the go or those who use public charging stations at airports, hotels, etc. Designed with a transparent case for a more visual look and feel.
No Pop-upsBy JSAUX data blocker, your phone can never receive pop-ups for requirement of data transmission.

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8.8

BUISAMG

BUISAMG Data Blocker, USB A & USB C Data Blocker for iphone15 16 and Any USB C Mobile Phone Charge, Protect Against Juice Jacking, Refuse Hacking, Only Charging (Red)

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Main Highlights

Combination set: More affordable, 2 pieces of USB to A & 2 pieces of USB A to C and 2 pieces USB C to C Data Blocker -total 6 pieces, which can meet your daily use needs, suitable for any mobile phones and electronic devices with USB A and USB C interfaces.
PROTECT YOUR PHONE / TABLET : Think about that Traveling or going out in public areas one time when you needed a charge at an airport but were too scared to get juice jacked. That is why we brought this data blocker for you. Charge your device with this powerful USB data blocker without worrying about any hacker getting in your device.
HIGH SPEED CHARGING: USB defenders are made for blocking the hacker as well as fast charging, The 4th generation design chip can be used for the universal charging standards automatically switch to, Compatible with Various brands of smartphones, ensure compatibility with your device. and charge at up to 2.4 Amps.
to make high quality safety products:Advance manufacturing process design The metal shell material has multiple safety protection functions such as heat dissipation and fire safety, USB Data Blocker are used by the governments of the USA, Canada, UK and New Zealand as well as 100s of corporations around the world to secure their devices100% guarantee against hacker attack.
Perfect Compatibility: We USB-C to USB-C and USB-A to USB-C data blocker ensures seamless data security across all your Type-C tech gadgets including iPhone 15 and 16 series, Galaxy S25 S24 S23 S22 S21 S10, USB-C iPad, Android Tablets, MacBooks, and more
If you are unsatisfied with the product for any reason simply contact us and we will issue with our no hassle return policy.12-Month worry free period, in use have any questions, we will resolve your issue within 24 hours.

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8.6

BUISAMG

BUISAMG Data Blocker, USB A to C & USB C Data Blocker for iphone15 16 and Any Mobile Phone Charging, Protect Against Juice Jacking, Refuse Hacking 100% Guaranteed, Only Safe Charging (4-Pack)

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Main Highlights

2025 upgraded versionBUISAMG's data blocker is constantly pursuing innovation, with products that are smaller and more convenient for you to use and carry, The maximum length of USB A to C and USB C to C data blockers is only 0.82 inches (21mm), Aluminum alloy shell design is more exquisite and durable
Multiple models to choose from: More affordable, We offer a variety of USB A to C and USB C to C data blockers for you to choose from, and there is always one that suits you, which can meet your daily use needs, suitable for any mobile phones and electronic devices with USB A and USB C interfaces
HIGH SPEED CHARGING: USB defenders are made for blocking the hacker as well as fast charging, data blocker ompatible with Various brands of smartphones, ensure compatibility with your device. USB A to C charge at up to 2.4 Amps, USB C to C Supports up to PD 240W
PROTECT YOUR PHONE / TABLET : Think about that Traveling or going out in public areas one time when you needed a charge at an airport but were too scared to get juice jacked. That is why we brought this data blocker for you. Charge your device with this powerful USB data blocker without worrying about any hacker getting in your device
You will receive: USB A to C data blocker 2-Pack and USB C to C data blocker 2-Pack, You will no longer worry about USB cable compatibility issues, two types of DATA BLOCKER can meet your daily charging needs!
If you are not satisfied with the product for any reason, just contact us. BUISAMG's products come with a 12-month quality guarantee period. If you have any questions during use, please give me feedback and we will solve your problem within 24 hours!

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8.3

PortaPow

PortaPow USB Data Blocker (2 Pack) - Protect Against Juice Jacking

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Main Highlights

Attach between your USB cable and charger to physically block data transfer / syncing; Charge mobile devices without any pop-ups or risk of hacking / uploading viruses in cars, airports etc
This is our USB-A to A version, USB-C and others available; Read below if its the right one for your device
The only data blocker to physically show you that its blocking data and several other great features; See full details below
Allows charging without any risk of hacking / uploading viruses, can charge from an office PC even if USB socket has been disabled without breaking IT policy

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8.1

PortaPow

PortaPow USB Power Blocker - Stops Charging, Allows Data (Twin Pack)

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Main Highlights

This is NOT a data blocker, see PortaPow's other products if that is what you need
This a USB-A male to female adaptor which has the D+, D- and 0V connected but the 5V disconnected, so power cannot pass through.
Useful for specialist applications such as 3D Printers and Raspberry Pi where providing power results in undesirable effects
Note a power blocker is not compatible with smartphones, tablets and many other devices. Please read the reviews to see situations where it does and does not work.
Extra Value Twin Pack. Supports USB 2.0 Data Transfer.

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8.1

PortPlugs

PortPlugs USB-A Port Blockers - Key Lock USB Security for PC, Laptop & Notebook - Removable Type-A Data Protection - Dust & Moisture Resistant Shield | Black (10-Pack)

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Main Highlights

OPTIMIZED FOR USB-A PORTS - PortPlugs USB Port Blockers are compatible with a wide range of devices, including desktops, laptops, and notebooks. They were specifically designed to fit USB A ports for a secure fit. These 10 protective port caps with keys allow you to protect your devices for a hassle-free experience.
REMOVABLE WITH KEY - Experience both security and convenience with our removable port blockers. With the included key, you can effortlessly lock and unlock the port blockers, making managing device connections easier.
TWO-WAY PROTECTION - Enjoy advanced protection with our premium USB-A port blockers. Physically block USB ports to prevent unauthorized access and defend your data's integrity. Additionally, protects your devices from dust, enhancing their longevity.
PREMIUM BUILD & PROTECTION - Crafted from oxidation-proof, heat-resistant PE material, our USB cover cap offers dual benefits security and protection against dust and moisture. - managing access has never been easier.
TRUSTED USA-BASED BRAND - Founded in San Diego, CA, PortPlugs is a pioneer in device port protection. We promise unmatched quality and customer satisfaction. Whether it's USB data blocking or simple dust caps, PortPlugs has you covered.

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Our Best Overall Choice

Best Choice

9.7

JSAUX

JSAUX USB Data Blocker, (4-Pack) USB A Defender Only for Quick Charge, Protect Against Juice Jacking, Refuse Hacking Provide Safe Charging- Red

Free Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Charge Only: No data-sync function. Safely charge in public, protecting against data breaches and virusesideal for travel and business trips
2.4A Fast Charge: Delivers up to 2.4A for iPhones, iPads, Samsung devices, tablets, MP3s, and most USB devices
Metal & Non-Slip: Premium aluminum shell adds durability, protecting internal chips, while the non-slip design ensures easy insertion and removal
Compact & Portable: Lightweight and small enough to fit in your wallet or pocket, perfect for travel
No Pop-ups: JSAUX data blocker prevents any data transmission requests on your phone

Show Price

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