Lenovo ThinkPad USB 3.0 Ethernet Adapter

Lenovo ThinkPad USB 3.0 Ethernet Adapter

Lenovo ThinkPad USB 3.0 Ethernet Adapter

B&H # LE4X90E51405 MFR # 4X90E51405
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Product Highlights

  • Network/Ethernet Interface
  • Full-Size RJ-45 Connector
  • BIOS and UEFI BIOS System
  • QoS (Quality of Service)
  • USB 3.0 to Ethernet Cable
  • IEEE 802.3x Flow Control
  • IEEE 802.3az Gigabit Ethernet
  • Compliant with IEEE 802.3 & IEEE 802.3u
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Lenovo 4X90E51405 overview

  • 1Description

The ThinkPad USB 3.0 Ethernet Adapter from Lenovo enables Ethernet on systems which do not have an Ethernet RJ-45 connector through a USB port on the system. Its USB 3.0 Ethernet adapter provides optimal speed Gigabit Ethernet solution via a USB 3.0 port and enables booting over the LAN on selected ThinkPad systems. The adapter lets you connect your Ultrabook or Tablet to your corporate VPN at the office or go online in your hotel while you are travelling. Its small form factor allows a convenient fit into any computer case or travel bag, so you can take it with you anywhere. Additionally, it features a full-size RJ-45 connector, LEDs on the connector to indicate connection status, two LEDs on the RJ-45 port to indicate power and data transfer.

Booting from LAN and loading image from remote server both on legacy BIOS and UEFI BIOS system
QoS (Quality of Service) tagged packets and duplicate address detection
Gigabit speed when running on USB 3.0 environment
100M/10M adapt when running on USB 2.0 environment
Full-duplex flow control (IEEE 802.3x)
IEEE 802.3az Gigabit Ethernet requirement
Compliant with IEEE 802.3 and IEEE 802.3u
Does not support POE (Power Over Ethernet)
UPC: 888228041933
In the Box
Lenovo ThinkPad USB 3.0 Ethernet Adapter
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Lenovo 4X90E51405 specs

    Interface Network/Ethernet
    Type USB 3.0 to Ethernet
    Length 6.9" (175.0 mm)
    LED Indicators Power: Green
    Activity: Yellow
    Environment 32 to 158°F (0 to 70°C)
    Dimensions (W x H x D) 3.90 x 0.63 x 11.02" (9.90 x 1.60 x 28.00 cm)
    Weight 1.6 oz (45.4 g)
    Packaging Info
    Package Weight 0.05 lb
    Box Dimensions (LxWxH) 6.8 x 3.4 x 0.5"

    Lenovo 4X90E51405 reviews

    ThinkPad USB 3.0 Ethernet Adapter is rated 3.5 out of 5 by 6.
    Rated 1 out of 5 by from Last only one month Arrived on 3/5, started to loose connection on 4/16 (will connect, but the connection only last two minutes). I have re-downloaded the driver and tried on a different computer but same result. Piece of junk!
    Date published: 2014-04-20
    Rated 1 out of 5 by from continuously disconnects and reconnects on windows continuously disconnects and reconnects on lenovo thinkcentre hardware running win 7 X64 SP1 . disabling auto negotiate or putting in a slower usb2 port doesnt help. dont waste your money. rubbish.
    Date published: 2016-07-01
    Rated 4 out of 5 by from works.. using it for 4 months ..no problems
    Date published: 2014-10-29
    Rated 5 out of 5 by from Is no Ethernet connector This device lets me use faster Internet connection via USB. [This review was collected as part of a promotion.]
    Date published: 2017-04-15
    Rated 5 out of 5 by from Perfect to use ethernet with an ultrabook This works perfectly with my Lenovo Yoga 2 Pro so I can use ethernet. Just what I needed.
    Date published: 2016-12-11
    Rated 5 out of 5 by from I would by this product again. very easy to use
    Date published: 2016-04-19
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