# UGREEN 35921 USB-C Ethernet Adapter, up to 5Gbps

UGREEN 35921 is a USB-C Ethernet adapter listed with a 5Gbps transfer rate for wired networking. That speed depends on a compatible USB 3.2 Gen 2 or faster port, a 5GbE network and Cat 6 or better cable, so it is not a guaranteed result on every setup.

- [Original product page](https://bargainpostbox.co.uk/product/ugreen-35921-usb-c-ethernet-adapter-5gbps)
- [View offer](https://bargainpostbox.co.uk/visit/ugreen-35921-usb-c-ethernet-adapter-5gbps)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: UGREEN
- Model: 35921
- Category: Computers > Networking > Network Adapters
- Price: 26.99 GBP
- Previous price: 34.99 GBP
- Discount: 23%
- Price checked: 2026-11-12T15:58:57.877Z
- Rating: 4.4 / 5
- Reviews: 663

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The manufacturer claims a 5Gbps wired network rate when the host port and network equipment support the required speeds.
- Aluminium casing and an internal heat-dissipation design are claimed. At 5Gbps or 2.5Gbps, the adapter is said to switch to Lite Mode.
- The feature listing describes support for Windows 11 and Linux Kernel 5.17 with drivers, and macOS 15 or later on Apple M3 chips and newer as plug and play.
- Listed features include Wake-on-LAN, Wake-on-WAN, Energy Efficient Ethernet and Auto MDI/MDIX.

## Pros

- A USB-C connection provides a direct wired Ethernet option for a compatible laptop, tablet or listed IP camera.
- The advertised 5Gbps rate may suit faster local-network transfers when the computer port, cable and network equipment all support it.
- The listing specifies broad power-management and network features, including Wake-on-LAN and Energy Efficient Ethernet.

## Cons

- The 5Gbps capability depends on compatible host and network hardware, and customer feedback is mixed on achieving advertised speeds.
- Apple compatibility is limited by the stated chip and operating-system requirements. The listing explicitly excludes M1 and M2 Macs.
- The adapter has no indicator light, according to the listing.

## Specifications

### Identity
- Brand: UGREEN
- Model: 35921
### Connection and compatibility
- Hardware interface: USB Type C
- Data link protocol: Ethernet
- Compatible devices: Internet Protocol Camera, Laptop, Tablet
- Listed operating system family: Windows
- Minimum required operating system version: Windows 10
### Performance and physical details
- Listed data transfer rate: 5 Gigabits Per Second
- Weight listed: 82 Grams

## Before you buy

- For the claimed 5Gbps rate, the manufacturer specifies Cat 6 or higher cabling and a 5GbE-capable router, switch or server, plus a USB 3.2 Gen 2 \(10Gbps\) or faster host port. It advises connecting directly, avoiding hubs, docks, extensions and USB-to-USB-C adapters, and turning off computer energy-saving mode. Actual rates vary with network conditions, storage speed and operating system. Windows 11 and Linux Kernel 5.17 require drivers. The listing gives Windows 10 as the minimum OS version but separately says Windows 11 requires drivers. Customer feedback reports some USB 3.1 compatibility problems, mixed speeds and reliability, and concerns about heat, while the feature listing claims reduced heat and automatic Lite Mode at 5Gbps or 2.5Gbps. These reports and claims do not establish a universal outcome.

## A good fit for

- Laptop users with a suitable USB-C port and 5GbE network equipment seeking a wired connection for faster local transfers.
- Users of supported Windows or Linux systems who can install drivers when required.
- Mac users with Apple M3 or newer chips running macOS 15 or later, after confirming their setup meets the stated requirements.

## Less suited to

- Mac users with M1 or M2 chips, which the listing explicitly says are unsupported.
- Setups relying on a USB hub, docking station, extension cable or USB-to-USB-C adapter, contrary to the manufacturer's connection guidance.
- Buyers who need an indicator light or require guaranteed 5Gbps performance from equipment that has not been confirmed to support it.

## Customer feedback

Customer feedback describes the adapter as well-built and appreciates its plug-and-play use, but also reports mixed experiences with compatibility, speed, reliability and value. Some customers say it can exceed 2.5GbE, while others report not reaching the advertised speed or the adapter stopping work. Heat is another concern. These reports matter most if you need sustained high-speed transfers, especially since the 5Gbps claim depends on compatible ports, cabling and network equipment, and the listing itself says heat management uses a Lite Mode at higher speeds.
- Positive themes: Customers describe the adapter as well-built.
- Positive themes: Some customers appreciate its plug-and-play functionality.
- Negative themes: Some customers report compatibility issues with USB 3.1.
- Negative themes: Some customers report that the adapter gets hot during use.
- Mixed feedback: Feedback on speed is mixed, including reports of performance above 2.5GbE and reports that it does not reach advertised speeds.
- Mixed feedback: Customers report mixed reliability, with some saying it works well and others saying it stops working.
- Mixed feedback: Feedback on value is mixed, with some considering it overpriced.

## Frequently asked questions

### Will this adapter deliver 5Gbps on any USB-C port?
No. The manufacturer says the host must have a USB 3.2 Gen 2 \(10Gbps\) or faster port, and the cable and network equipment must also support the required speeds. Real transfer rates vary.
### Which Macs are listed as compatible?
The feature listing says macOS 15 or later on Apple M3 chips and newer, and explicitly excludes M1 and M2. Confirm your exact device and OS before buying.
### Does it work with Windows 11 and Linux?
The listing says Windows 11 and Linux Kernel 5.17 are supported with drivers. It separately lists Windows 10 as the minimum required version.
### Does the adapter have an activity light?
No. The listing states that it does not have an indicator light.

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## Images

![UGREEN 35921 USB-C Ethernet Adapter, up to 5Gbps — 1](https://bargainpostbox.co.uk/i/OId6aBktpssN3YXBT4F_59gFtebycHH8U4PqxR6KU9XGUWJpLoL4PKN4VKqOq-5urfmaS2wKX0Xc4PBRRaCvXM3_dN6wubxELfPjR_PHX_YJCAS3g6mEor59.jpg)

![UGREEN 35921 USB-C Ethernet Adapter, up to 5Gbps — 2](https://bargainpostbox.co.uk/i/7f6N94R2dRtN1H2-dh2pJgX0ngGmkm8gkteM1K9uR95B4v7gKNstxR2p6FsdzRfeTm5JrbKOUOUZ6VICcU2-xMXjuDBSEoy-frX7gJFuGYBGK7mHWMi6eLN3.jpg)

![UGREEN 35921 USB-C Ethernet Adapter, up to 5Gbps — 3](https://bargainpostbox.co.uk/i/rfM-nWUrPsNpGIA7qnO2Qfr_F2pTDUJHljvVR-dUamd_gY9p39tI8Bs5W2gSSXs1s3u2b1fVPHtzIW2EqrOlbcfx5XXMArBFokcW8AlB74BRGPTi0s6CrcB6.jpg)

![UGREEN 35921 USB-C Ethernet Adapter, up to 5Gbps — 4](https://bargainpostbox.co.uk/i/Voxm3FaxiLtlRb04ZMG3cL2Q4nXldPTDSSBl3088xsDvdrXf0ZCPsSDLKtpzPRw-xg6_4q07qr9DaRJyg_RY9kih2NeRjl1sCvSrUhZ17Nkjj98gQkaTslS4.jpg)

![UGREEN 35921 USB-C Ethernet Adapter, up to 5Gbps — 5](https://bargainpostbox.co.uk/i/d5IrKmO0w9urYP8SD-qIWDP7YZgWtFufZAuUfaMlhG38SD6yCDZFpKYxg7S2Un3ReaKP8xerIWcSXrbXg-Mupw_00N6pPWLNJ1P0xy5c7PsBU6xKbVKu-Vmp.jpg)

![UGREEN 35921 USB-C Ethernet Adapter, up to 5Gbps — 6](https://bargainpostbox.co.uk/i/ySSW7eytF3_pogBoWCCKr6oc8u6f7TIQoANoRacDn_r1WJjxJzuxDVPqbVcxFLQIiRYGolpKvVVARmMGMf27hgpUSm2zi_WjuF8TK5NzoyPY7znMZ74K-bx4.jpg)

![UGREEN 35921 USB-C Ethernet Adapter, up to 5Gbps — 7](https://bargainpostbox.co.uk/i/YbJ3t6LNnDXdJPOGY6aI1DmHvXGjWQj4wB6OyeLvJq_GN1DJkrKIezZxVtZAqHT30Nz_EUzcNv1PNXydh8OcJ9gbIUxemv0nmEPWovabyCVtRoMLLhV6QNSr.jpg)