10000 Woodward Avenue
Woodridge, Illinois 60517
+1 773-869-1776
+1 (773) 869-1329
United States
Contact Us
Block empty USB ports to prevent accidental or unauthorized connection of devices that could upload malware or copy private data.
  • Port blockers help prevent unwanted thumb drives and other devices from connecting
  • Can only be locked and unlocked with included security key to ensure protection
  • Includes 4 blockers—3 store conveniently inside the key for safekeeping
  • Blockers and key must be used together for security purposes
  • Portable pocket-sized key and blockers are compatible with all USB-A ports


Secure USB Port Blockers Protect Your Data Against Unauthorized Access
These port blockers are an easy way to prevent unapproved personnel from connecting an unwanted flash drive or other USB peripheral to a USB-A port. Use the included security key to insert a blocker into the USB port and lock it into place. This will prevent any USB peripheral from infecting the device with malware or removing classified data. The key also removes the blocker just as easily and quickly as it installs the blocker. Four blockers are included, three of which conveniently store inside a compartment on the key. The key and blockers can only be used together for maximum security.

Package Includes

  • (4) Port blockers
  • Reusable key
  • Quick Start Guide
TAA compliant RoHS compliant


UPC Code037332253590
Accessory TypePort Blocker
Accessory ClassUSB Accessories
Product Length (in.)2.822
Product Length (cm.)7.71
Product Length (ft.)0.235
Product Length (m)0.0717
Side A - Connector 1USB A (MALE)
Side B - Connector 1USB A (MALE)
Contact Plating  Nickel
Material of ConstructionPlastic
Unit Packaging TypePolybag
Operating Temperature Range-40° to 185°F (-40° to 85°C)
Storage Temperature Range-58° to 221°F (-50° to 105°C)
Operating Humidity Range0 - 95 % RH, Non-Condensing
Storage Humidity Range0 - 95 % RH, Non-Condensing
Product CertificationsIEC/EN 62040
Product ComplianceRoHS; CE (Europe); REACH; Trade Agreements Act (TAA)
Product Warranty Period (Worldwide)Lifetime limited warranty

Questions & Answers



  Model Number Description
USB-A Port Blockers, Red, 10 Pack, TAA U2BLOCK-A10-RD U2BLOCK-A10-RD USB-A Port Blockers, Red, 10 Pack, TAA

Need help with your purchase?
We're always available to help with questions, including product selection, sizing, installation and product customization. Call us at +1 773-869-1776 or email