
Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
SFM40G-SR4 - Solarflare Gen2 40Base-SR4 100m 850nm QSFP+ Optical Transceiver Module
- 40Gbps data rate
- QSFP+ form factor
- 850nm wavelength
- Multi-Mode Fiber (MMF) support
- Parallel optics (4x10Gbps lanes)
- MPO/MTP connector
- Up to 100 meters transmission distance (OM3 fiber)
SFM40G-SR4 isn't on our shelf today — we source it to order. Request a quote and we'll confirm price and lead time within one business day.
Key specifications
See full specs ↓- Product Type
- QSFP+ Transceiver Module
- Data Rate
- 40 Gbps
- Wavelength
- 850nm
- Fiber Type
- Multi-Mode Fiber (MMF)
- Connector Type
- MPO/MTP
- Reach
- 100 meters (OM3)
Product details
The Solarflare SFM40G-SR4 is a 40Gbps QSFP+ transceiver module designed for short-reach, multi-mode fiber applications. It operates at a wavelength of 850nm.
Technical Information
| Product Type | QSFP+ Transceiver Module |
| Data Rate | 40 Gbps |
| Wavelength | 850nm |
| Fiber Type | Multi-Mode Fiber (MMF) |
Additional Specifications
| Connector Type | MPO/MTP |
| Reach | 100 meters (OM3) |
| Duplex Type | Parallel Optics (4x10G) |
Description
The Solarflare SFM40G-SR4 is a high-performance 40 Gigabit Ethernet QSFP+ (Quad Small Form-Factor Pluggable Plus) transceiver module. It is engineered for short-reach applications, utilizing multi-mode fiber (MMF) and operating at a wavelength of 850nm. This module employs parallel optics technology, effectively combining four independent 10Gbps lanes to achieve the aggregate 40Gbps data rate. This makes it an ideal solution for high-density data center environments where high bandwidth is required over short distances. The SFM40G-SR4 is designed to connect switches, routers, and servers within a rack or between adjacent racks. It uses an MPO/MTP connector, which is standard for parallel optics, allowing for a single cable assembly to carry all four lanes of optical signals. The module supports transmission distances of up to 100 meters over OM3 multi-mode fiber, and even further over OM4 fiber, providing flexibility in data center layout and connectivity. This transceiver is typically used for high-speed interconnects such as 40GBASE-SR4 Ethernet. Its hot-pluggable nature allows for easy installation and maintenance without the need to power down network equipment. The Solarflare SFM40G-SR4 is built to meet the demanding requirements of modern data centers, offering a cost-effective and efficient way to achieve 40Gbps connectivity. It is compatible with a wide range of networking equipment that supports the QSFP+ form factor and SR4 standard.
Condition: Refurbished
Free U.S. ground shipping
Typically 1–2 days handling, 3–7 days in transit.
Purchase orders accepted
Government, enterprise, data center and small business.
Buying 10+ units?
Get volume pricing and availability for SFM40G-SR4.
