Lenovo USB-C to 2.5G Ethernet Adapter
Prices in SGD, excluding 9% GST.
PRODUCT DESCRIPTION
Lenovo USB-C to 2.5G Ethernet Adapter (4X91H17795) - 1 Year Warranty, Singapore Local Warranty
2.5 Gigabit Wired Speed
The Lenovo USB-C to 2.5G Ethernet Adapter adds a 2.5 Gbps RJ-45 port to a USB-C notebook — faster than Gigabit, and Lenovo says it doubles the performance of a traditional Gigabit adapter on 2.5 Gbps-capable switches and routers.
Works on Cat 5e Cabling
2.5 Gigabit signals are designed to run over existing Cat 5e cabling, so faster file transfers and system imaging do not require rewiring.
Built for IT Deployment
PXE boot is supported, and Wake-on-LAN and MAC address pass-through work where the host notebook supports them. Link and activity LEDs sit on the RJ-45 port.
Lenovo USB-C to 2.5G Ethernet Adapter Datasheet — Technical Specifications
General
| Product | Lenovo USB-C to 2.5G Ethernet Adapter |
| Part Number | 4X91H17795 |
| Product Type | Cable adapter |
| Manufacturer Warranty | 1 Year |
| Local Warranty (Singapore) | Included with every SourceIT purchase, with GST invoice |
Network
| Speed | 2.5 Gigabit Ethernet (2.5 Gbps) |
| Port | 1 x RJ-45 with link and activity LEDs |
| Cabling | Cat 5e or better |
| PXE Boot | Yes |
| Wake-on-LAN / MAC Pass-through | Supported if the host notebook supports them |
Host & Power
| Host Connector | 1 x USB 3.0 Type-C |
| Host Requirement | USB-C port supplying 5 V / 3 A |
| Max Power Consumption | 7.5 W |
| Hot Plug | Yes |
| Over-voltage Protection | Yes |
| Operating System | Windows 10 (as listed by Lenovo) |
| Driver | Required — Lenovo USB3.0 LAN Driver for Docks and Adapters |
Physical
| Length | 200 mm (7.87 in) |
| Depth x Height | 27.78 x 14 mm (1.09 x 0.551 in) |
| Weight | 41 g (1.45 oz) |
Certifications
| Agency Approvals | CB, CE, FCC, ICE, RCM, VCCI, KCC, BSMI, EAC, Ukraine DoC |
Compatibility & Fit
2.5 Gbps Needs a 2.5G Network
To reach 2.5 Gbps the switch or router port must also support 2.5GBASE-T. On a standard Gigabit network the adapter connects at the network's speed.
USB-C Host Port
Plug into a USB-C port on your notebook that can supply 5 V / 3 A. Install the Lenovo USB3.0 LAN Driver for Docks and Adapters from Lenovo Support.
USB-A Alternative
For USB-A ports, the ThinkPad USB 3.0 to Ethernet Adapter (4X90S91830) is the alternative.
Package Contents & Lenovo Ordering Information
In the box:
- Lenovo USB-C to 2.5G Ethernet Adapter
- User guide poster
- Warranty poster
Lenovo Cables & Adapters Ordering Information
| 4X90R61022 | Lenovo USB-C to HDMI 2.0b Adapter |
| 4X90Q93303 | Lenovo USB-C to DisplayPort Adapter |
| 4X90M42956 | Lenovo USB-C to VGA Adapter |
| 4X90J31021 | Lenovo USB 3.0 to DisplayPort Adapter |
| 4X90R61023 | Lenovo DisplayPort to HDMI 2.0b Adapter |
| 4X90Q93976 | ThinkStation Mini DP to HDMI Adapter |
| 4X91H17795 (this listing) | Lenovo USB-C to 2.5G Ethernet Adapter |
| 4X90S91830 | ThinkPad USB 3.0 to Ethernet Adapter |
| 4X90Q84427 | ThinkPad Ethernet Extension Adapter Gen 2 |
| 4X90Q59481 | Lenovo USB-C to USB-A Adapter |
| 4X90U45346 | Lenovo USB-C to Slim-tip Cable Adapter |
Datasheet & Downloads
- Lenovo product page — 4X91H17795
- Lenovo Support — USB-C to 2.5G Ethernet Adapter overview and service parts
- Lenovo Accessories SmartFind — 4X91H17795
Use Lenovo SmartFind to confirm the adapter suits your exact device before ordering.
Frequently Asked Questions — Lenovo USB-C to 2.5G Ethernet Adapter
Will I get 2.5 Gbps on my office network?
Only if the switch or router port supports 2.5 Gbps. Otherwise it runs at the network's speed.
Do I need new cabling?
No. Lenovo states 2.5 Gigabit signals are designed to work over Cat 5e cabling.
Does it support PXE boot and Wake-on-LAN?
PXE boot is supported. Wake-on-LAN and MAC address pass-through work if the host notebook supports them.
Does it need a driver?
Yes. Lenovo lists the Lenovo USB3.0 LAN Driver for Docks and Adapters.
What warranty does it carry?
Lenovo lists a 1-year warranty, and every SourceIT purchase includes Singapore local warranty support with a GST invoice.
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