Startech Cisco QSFP-40G-SR4 Compatible QSFP+ Module 40GBASE-SR4, 40GbE Multimode Fiber MMF Optic Transceiver, 40GE Gigabit Ethernet MPO Connector, 150m, 850nm, DDM, Cisco Firepower
Lifetime Warranty (QSFP40GSR4ST) | QSFP+ transceiver module (equivalent to: Cisco QSFP-40G-SR4) | 40GbE | 40GBASE-SR4 | MPO multi-mode | up to 150 m | 850 nm
Images for illustration purposes only, actual product may differ
Main Specification
| Product Description | Startech Cisco QSFP-40G-SR4 Compatible QSFP+ Module 40GBASE-SR4, 40GbE Multimode Fiber MMF Optic Transceiver, 40GE Gigabit Ethernet MPO Connector, 150m, 850nm, DDM, Cisco Firepower - Lifetime Warranty (QSFP40GSR4ST) - QSFP+ transceiver module - 40GbE |
|---|---|
| Device Type | QSFP+ transceiver module - MPO multi-mode |
| Form Factor | Plug-in module |
| Cabling Type | 40GBASE-SR4 |
| Data Transfer Rate | 40 Gbps |
| Optical Wave Length | 850 nm |
| Data Link Protocol | 40GbE |
| Max Transfer Distance | 150 m |
| OEM Manufacturer Equivalent Part Number | Cisco QSFP-40G-SR4 |
| Dimensions (WxDxH) | 1.84 cm x 7.2 cm x 0.85 cm |
| Weight | 40 g |
| Manufacturer Warranty | Limited lifetime warranty |
General
| Device Type | QSFP+ transceiver module |
|---|---|
| Form Factor | Plug-in module |
| Colour | Silver |
Networking
| Connectivity Technology | Wired |
|---|---|
| Cabling Type | 40GBASE-SR4 |
| Data Link Protocol | 40GbE |
| Data Transfer Rate | 40 Gbps |
| Optical Wave Length | 850 nm |
| Max Transfer Distance | 150 m |
| Features | Full duplex mode, Digital Optical Monitoring (DOM) support, Digital Diagnostics Monitoring (DDM) |
| Compliant Standards | IEEE 802.3ba |
Expansion / Connectivity
| Interfaces | 1 x Ethernet 40GBASE-SR4 - MPO multi-mode female |
|---|
Miscellaneous
| Compliant Standards | UL, FCC, RoHS, MSA |
|---|---|
| OEM Manufacturer Equivalent Part Number | Cisco QSFP-40G-SR4 |
Dimensions & Weight
| Width | 1.84 cm |
|---|---|
| Depth | 7.2 cm |
| Height | 0.85 cm |
| Weight | 40 g |
Manufacturer Warranty
| Service & Support | Limited warranty - lifetime |
|---|
Environmental Parameters
| Min Operating Temperature | 0 °C |
|---|---|
| Max Operating Temperature | 70 °C |
| Humidity Range Operating | 5 - 95% |
Key selling points
- 100% compatibility with Cisco QSFP-40G-SR4 guaranteed
- StarTech.com SFP modules are backed by a lifetime warranty
- Meets or exceeds OEM specifications and Multi-Source Agreement (MSA) industry standards
References
MPN: QSFP40GSR4ST
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04/06/2026 10:15:21