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4X90E51405 Lenovo ThinkPad USB 3.0 Ethernet Adapter

Mfg Part Number:  4X90E51405  
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Price: $29.91 + Free Shipping
Quantity:
More to Come
Last Updated: Apr 18, 2026
No Sales Tax except these states
, PO and Wire.
The ThinkPad USB 3.0 Ethernet adapter enables Ethernet on systems which do not have Ethernet RJ-45 connector through USB port on the system. The ThinkPad USB 3.0 Ethernet adapter not only provides high speed Gigabit Ethernet solution via USB 3.0 port, but also enables boot over the LAN on selected ThinkPad systems. Connect it with your Ultrabook or Tablet to your corporate VPN at the office or go online in a hotel suite. The adapter's small form factor allows a convenient fit into any computer case or bag to travel, so you can easily take it with you anywhere.
Main Specification
General Information
Manufacturer Lenovo Group Limited
Manufacturer Part Number 4X90E51405
Manufacturer Website Address http://www.lenovo.com/us/en/
Brand Name Lenovo
Product Name ThinkPad USB 3.0 Ethernet Adapter
Product Type Gigabit Ethernet Card
Interfaces/Ports
Host Interface USB
Total Number of Ports 1
Network (RJ-45) Yes
USB No
Serial Port No
Ethernet AUI No
XJACK No
PoE (RJ-45) Port No
Number of Network (RJ-45) Ports 1
Media & Performance
Media Type Supported Twisted Pair
Network & Communication
Network Technology 10/100/1000Base-T
Physical Characteristics
Form Factor Desktop
Height 0.6"
Width 3.9"
Depth 11"
Weight (Approximate) 1.60 oz
Miscellaneous
Platform Supported PC
Warranty
Limited Warranty 1 Year
product information

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