Original price was: £ 4,131.69.£ 4,054.95Current price is: £ 4,054.95. | £ 4,865.94 inc VAT
Sonnet Twin25G PCIe Card
Sonnet Twin25G PCIe Card
Dual-Port 25GbE SFP28 Networking With Included Optical Transceivers
The Sonnet Twin25G PCIe Card adds two high-speed SFP28 Ethernet ports to compatible workstations, servers and PCIe expansion systems for demanding shared-storage and media-network workflows.
Two short-range 25GBASE-SR SFP28 optical transceivers are installed and included, with support for both 25Gbps and 10Gbps network connections.
- Two 25GbE SFP28 ports.
- Two short-range SFP28 optical transceivers included.
- Mellanox ConnectX Ethernet controller.
- Link aggregation can provide aggregate bandwidth up to 50Gb/s where supported.
Brand: Sonnet Technology
Original price was: £ 631.00.£ 575.95Current price is: £ 575.95. | £ 691.14 inc VAT
In Stock
Sonnet Twin25G PCIe Card – Product Overview
The Sonnet Twin25G PCIe Card, part number G25E-2X-E3, is a low-profile dual-port 25 Gigabit Ethernet adapter designed for high-bandwidth professional networking.
It ships with two short-range SFP28 optical transceivers installed and supports both 25Gbps and 10Gbps network operation.
Dual 25 Gigabit Ethernet Ports
Two SFP28 sockets provide 25Gb/s connectivity per port. The card also supports 10Gb/s network operation, allowing integration with compatible 10GbE and 25GbE infrastructure.
Optical Transceivers Included
Sonnet includes two short-range SFP28 optical transceivers on the card. OM3 or OM4 LC/LC multimode fibre cabling is used for 25GbE operation; compatible OM2 cabling supports 10Gbps operation.
Link Aggregation And Failover
Supported operating systems can use the two ports for teaming or link aggregation. Sonnet specifies aggregate transfer capability up to 50Gb/s in supported teamed configurations, along with balanced traffic and automatic failover.
Mellanox ConnectX Controller
The Mellanox ConnectX controller supports flow control, receive-side scaling, multicast filtering and hardware checksum and segmentation offloads for efficient high-throughput networking.
PCIe 3.0 x8 Interface
Twin25G is a low-profile PCIe 3.0 x8 card. An x4 slot can support one port at full bandwidth, while an x8 slot provides full bandwidth for both ports.
Jumbo Frames
The card supports jumbo frames with a maximum packet size of 9000 bytes, helping reduce protocol overhead on suitably configured high-performance networks.
Sonnet Twin25G PCIe Card – Key Features
- Sonnet part number G25E-2X-E3.
- Two SFP28 25GbE network ports.
- Two short-range SFP28 optical transceivers installed and included.
- Supports 25Gbps and 10Gbps network operation.
- Mellanox ConnectX Ethernet controller.
- PCIe 3.0 x8 low-profile card.
- PCIe x4 slot supports one port at full bandwidth.
- PCIe x8 slot supports both ports at full bandwidth.
- Link aggregation / teaming support on compatible operating systems.
- Aggregate teamed bandwidth up to 50Gb/s where supported.
- Automatic failover support in compatible link-aggregation configurations.
- Maximum packet size of 9000 bytes.
- Flow control and receive-side scaling support.
- TCP, UDP and IPv4 checksum offloading.
- TSO and TCP receive offload support.
- Full-height and low-profile mounting brackets included.
- Compatible with supported Thunderbolt-to-PCIe expansion systems.
- 2-year Sonnet warranty.
Sonnet Twin25G PCIe Card – Technical Specifications
| Manufacturer | Sonnet Technologies |
| Manufacturer Part Number | G25E-2X-E3 |
| Product Type | Dual-port 25 Gigabit Ethernet SFP28 PCIe network card |
| Form Factor | Low-profile PCIe card |
| PCIe Interface | PCIe 3.0 x8 |
| PCIe x4 Operation | One port at full bandwidth |
| PCIe x8 Operation | Two ports at full bandwidth |
| External Connectors | 2 x SFP28 |
| Included Transceivers | 2 x short-range SFP28 optical transceivers, installed |
| Ethernet Controller | Mellanox ConnectX |
| Network Speeds | 25Gb/s and 10Gb/s |
| Link Aggregation / Teaming | Supported on compatible operating systems; aggregate transfer capability up to 50Gb/s |
| Maximum Packet Size | 9000 bytes |
| Advanced Networking | Flow control, MSI, RSS, multicast filtering, 64-bit addressing |
| Stateless Offloads | TCP, UDP and IPv4 checksum offload; TSO; TCP receive offload |
| Wake-on-LAN | Not supported |
| Recommended Fibre For 25GbE | OM3 or OM4 LC/LC multimode fibre |
| OM2 Fibre Operation | 10Gbps supported |
| Compliance | RoHS 3; IEC62368-1 / IEC62368-2 |
| Warranty | 2 years |
| Package Contents | Twin25G PCIe Card, two installed short-range SFP28 transceivers, full-height and low-profile brackets, documentation |
Sonnet Technology Delivery Information
Generally, next working day delivery services (UK Mainland) are available on standard Sonnet Technology Delivery orders placed before 2 pm (subject to stock availability).
Non-timed deliveries should be delivered between 9 am and 6 pm.
Orders placed after 2 pm on Fridays and weekends will be processed as normal the following Monday.
Orders placed on Bank Holidays will be processed the next working day.
If urgent, please call one of our helpful account managers so they may double check everything for you, enabling you to place your order with confidence.
Please note: these product details are for guide purposes only, and may contain errors.
We always recommend double-checking the product specs and features on the the manufacturer website, or contact us if unsure before ordering.






