Lenovo ThinkPad USB 3.0 Ethernet Adapter | 4X90E51405
SKU: 4X90E51405
£26.40 (Excl. VAT)
- Description
- Specifications
-
Lenovo ThinkPad USB 3.0 Ethernet Adapter

ThinkPad USB 3.0 Ethernet Adapter
The ThinkPad USB 3.0 Ethernet (4X90E51405) 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.
- Full size RJ45 connector; LEDs on connector to indicate connection status
- Two LEDs on RJ45 port for power and data transfer indication. Green for power and Yellow for activity.
- 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
- Doesn’t support POE (Power over Ethernet)
- Giga bit speed when running on USB3.0 environment
- 100M/10M adapt when running on USB2.0 environment
- Full Duplex flow control (IEEE 802.3x)
- Compliant with IEEE 802.3 and IEEE 802.3u
- IEEE 802.3az Giga bit Ethernet requirement -
Category Details Design Internal: No, Plug and Play: Yes, Color: Black Certification VCCI, CB, Ukraine CoC, ACA/C-Tick, CE MARK, ICES, KC (Korea), EAC, FCC, BSMI Legal Information EU ECCN: N/A, US ECCN: 5A991.b.4.a, UNSPSC Code (Icecat): 43201404 Network 10/100/1000BaseT(X), Ethernet LAN: Yes Ethernet LAN Data Rate 10/100/1000 Mbit/s Max Data Transfer 1000 Mbit/s Networking Standards IEEE 802.3/802.3az/802.3u/802.3x Operational Conditions Temp: 0 - 70°C Other Features HS Code: 85176990 Package Dimensions 10.1 cm (D) × 18.4 cm (W) × 2.3 cm (H), Gross Weight: 0.038 kg Ports & Interfaces Wired, 1 × RJ-45 Ethernet Port, USB Interface USB Ports 1 Product Dimensions 28 cm (D) × 10 cm (W) × 1.6 cm (H), Net Weight: 0.028 kg Vendor Information Brand: Lenovo, Warranty: 1 Year Categories Server & Computer Parts, System Components, Networking Cards
LATEST CASE STUDIES
See more-
February 26, 2026Digital Menu Boards & High-Brightness Display for Karak Chaii, Southall
HOSPITALITY • DIGITAL MENU BOARDS43-inch 4K vivid-bright digital menu board installed by ScreenMoove, ceiling mounted for a clean finish, delivering sharper menu clarity, flexible content updates and reliable 24/7 commercial performance.ClientKarak ChaiiLocationSouthallSectorHospitalityInstallation DateFebruary 2026SolutionDigital Menu BoardsProducts43" Digital Signage Display -
January 22, 2026Digital Signage & Installation Service for A MANO, Orpington
RETAIL • Digital SignageWindow-facing 55-inch digital signage installed for A MANO in Orpington, delivering vivid-bright 800 cd/m2 visibility, CMS-controlled updates, and street-level brand impact and daily promotion.ClientA ManoLocationOrpingtonSectorHospitalityInstallation DateJanuary 2026SolutionDigital Signage + InstallationProducts55" Digital Signage Display -
January 14, 2026Digital Menu Boards with Custom Curved Mount Installation for Woodys, Andover
HOSPITALITY • DIGITAL MENU BOARDSFour-screen digital menu boards installed for Woodys in Andover, featuring a bespoke curved mounting layout and CMS-controlled content for a bold, immersive menu experience.ClientWoodysLocationAndoverSectorHospitality, QSRInstallation DateFebruary 2025SolutionDigital Menu Boards + CMSProducts43" Digital Menu Boards -
January 14, 2026Digital Signage & Freestanding Display for Naan Staap, Leicester
HOSPITALITY • DIGITAL MENU BOARDSMulti-screen digital menu boards and floor-to-ceiling ultra-high-brightness window display installed for Naan Staap in Leicester, delivering clear menus and strong street-level visibility impact.ClientNaan StaapLocationLeicesterSectorHospitality, QSRInstallation DateMay 2025SolutionMenu Boards + UHD DisplayProducts32" Menu Boards & 49" Display
Top Quality Store
Why it matters
Demonstrates consistently strong fulfilment, service, and post-sale experience across Google signals.
Great products and service! The guys always go above and beyond to make sure they supply you with the product that best fits your needs. I’ve been using Screen Moove for a number of years now and woul...
See moreScreen Moove went above and beyond for my requirements. Ordering system was super easy it just take 2 minutes to complete my order and I have received my tracking details right away after few minutes...
See moreMoe Khan, one of the team at Screen Move has been a fantastic help as we have navigated the process of choosing and buying screens and stands for our church. Helpful at every step of the way, patient...
See moreWe originally planned to purchase a cheap TV for our showrooms. After speaking with screen moove, we ended up investing in floorstanding displays across multiple retail sites and showrooms. The bright...
See moreI placed my order late at night but realized I had entered the wrong address. I immediately sent an email asking for it to be changed, not really expecting a reply until the next day. To my surprise,...
See moreI’ve been looking ultra high brightness display despite I checked everywhere I didn’t trust. They got my trust and I ordered. It arrived safely next day we have installed screen is awesome and high qu...
See moreThis is second time I used Screen Moove, I have bought double sided 55 inch display. The first order was a bit delayed I don't blame it might be happen, but customer service over the phone was excell...
See moreScreenmoove, perfect customer satisfaction from start to finish! Their customer service is incredibly helpful and fast. It’s amazing to be able to reach out and get quick solutions for any issue. We a...
See moreWe found that we needed a video call to work out the set up. The tech team at screenmoove were very very good. I would suggest that the instructions that come with the screen offer two key info. 1. Set...
See moreGreat experience with Jonathan Gray, previously I was looking for other companies and randomly ordering our needs from elsewhere. after I met with him, since 2024 we are keep purchasing from screen m...
See moreLooking for a Better Price?
Apply for a Screen Moove trade account and unlock exclusive pricing on commercial displays, digital signage, LED displays, mounting solutions and professional AV products.
Register now
Schedule a Free Consultation
Speak with our team about your display, digital signage, CMS, mounting or installation requirement. We will help you choose the right commercial AV solution before you spend money on the wrong product.
Display Specification Advice
We help you choose the correct screen size, brightness, orientation, operating hours and product type for the real environment.
Mounting & Installation Guidance
Need wall mounting, ceiling mounting, floorstands, video wall brackets or full installation support? We can advise the practical route.
CMS & Content Support
For menu boards, retail signage, reception screens and internal communication displays, we can guide you on CMS setup and content control.
Trade, Education & Multi-Site Projects
For resellers, schools, councils, contractors and multi-site businesses, we support fast quotations, project pricing and rollout planning.
Get in Touch
Ready to start your next AV project?
Contact our team of experts today!