10 Best Usb Blocker of 2025

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

May 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

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, 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

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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9.5

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, Prevent Hacking for Safe Charging

Main Highlights

The Ultimate Data Guardian: Worried about the risk of mobile phone data leakage or viruses when using public charging stations? A data blocker is an effective way to reduce these risks. By physically blocking data transfer, it helps protect your device from potential spyware or hacking attempts while charging
Only for Charging: With our USB data blocker, you can charge your device without any risk of data transfer. It allows only the charging function while blocking data transfer and syncing. Your phone will not receive pop ups requesting 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 Design for Travel and Daily Use: Small and lightweight for easy carrying in pockets, backpacks, or keychains. Ideal for travelers, commuters, and anyone who frequently uses public charging stations. The transparent casing provides a modern and durable look
USB & USB C Data Blockers 4 Pack: We offer you two USB Data Blockers and two USB C Data Blockers, compatible with iPhone 17/17e/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. Works with both USB and USB C ports, ideal for safe charging at airports, hotels, and public charging stations

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9.2

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

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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9.0

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)

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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8.8

PortPlugs

PortPlugs (10-Pack) USB-A Port Blockers - Key Lock USB Security to Help Prevent Data Theft - Removable Type-A Data Protection - Dust & Moisture Resistant Shield | Black

Main Highlights

USB A PORT BLOCKERS WITH KEY: Designed for standard USB A ports on laptops, desktop PCs, notebooks, and docking stations. Includes 10 USB blockers and a removal key for simple physical port control on compatible devices.
PREVENT DATA THEFT AND UNWANTED ACCESS: Use these USB port locks to restrict unauthorized data transfer on unattended devices. They provide total peace of mind for offices, schools, front desks, computer labs, and libraries.
FOR WORK, TRAVEL, AND SHARED DEVICES: Useful when devices are left unattended or used by multiple people. Ideal for business travel, classrooms, hotel workstations, field setups, and family computers in shared spaces.
DUST AND MOISTURE PROTECTION: In addition to controlling port access, these USB A blockers keep out dust, debris, and moisture that collect in open ports over time. A smart choice for everyday protection and cleaner ports.
DESIGNED FOR IT ADMINS AND HOME USERS: Made from durable, heat resistant PE material. A simple solution for IT teams, schools, parents, and security minded users who want better control over open USB A ports.

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8.6

rgzhihuifz

rgzhihuifz USB Data Blocker 4-Pack USB-C to A & A to C Charge-Only Adapters – Anti Juice Jacking, Safe Travel Charging, Hacking Proof 100% Guaranteed, USB C Data Blocker for Any USB Phone Charging

Main Highlights

upgraded version:rgzhihuifz data blocker is constantly pursuing innovation, with products that are smaller and more convenient for you to use and carry, 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.
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.
Compact & Convenient : Lightweight and small enough to fit in your pocket, wallet, or travel pouch. Keep one at your desk and one in your bag for always-available protection wherever you charge.
You will receive: USB A to C data blocker 4-Pack and USB A to C C to A data blocker 4-Pack, You will no longer worry about USB cable compatibility issues, two types of DATA BLOCKER can meet your daily charging needs!

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8.3

PortaPow

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

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)

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

PortaPow

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

Main Highlights

This is NOT a data blocker, see PortaPow's other products if that is what you need
This is a USB-A male to female adaptor which has the D+, D- and 0V (GND) 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.
Supports USB 2.0 Data Transfer.

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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

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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