Startech Dell EMC QSFP-40G-ESR4 Compatible QSFP+ Module, 40GBASE-SR4, 40GbE Multimode Fiber MMF Optic Transceiver, 40GE Gigabit Ethernet QSFP+, MPO Connector, 400m, 850nm, DDM, 40Gbps
Lifetime Warranty (QSFP40GESR4E) | QSFP+ transceiver module (equivalent to: Dell EMC QSFP-40G-ESR4) | 40GbE | 40GBASE-SR4 | MPO multi-mode | up to 400 m | 850 nm
Images for illustration purposes only, actual product may differ
Main Specification
| Product Description | Startech Dell EMC QSFP-40G-ESR4 Compatible QSFP+ Module, 40GBASE-SR4, 40GbE Multimode Fiber MMF Optic Transceiver, 40GE Gigabit Ethernet QSFP+, MPO Connector, 400m, 850nm, DDM, 40Gbps - Lifetime Warranty (QSFP40GESR4E) - 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 | 400 m |
| OEM Manufacturer Equivalent Part Number | Dell EMC QSFP-40G-ESR4 |
| Dimensions (WxDxH) | 5.84 cm x 1.39 cm x 1.26 cm |
| Weight | 40 g |
| Manufacturer Warranty | Limited lifetime warranty |
General
| Device Type | QSFP+ transceiver module |
|---|---|
| Form Factor | Plug-in module |
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 | 400 m |
| Features | Full duplex mode, Digital Diagnostics Monitoring (DDM) |
Expansion / Connectivity
| Interfaces | 1 x Ethernet 40GBASE-SR4 - MPO multi-mode female |
|---|
Miscellaneous
| MTBF | 45,017,120 hours |
|---|---|
| Compliant Standards | UL, FCC, RoHS, REACH, MSA |
| OEM Manufacturer Equivalent Part Number | Dell EMC QSFP-40G-ESR4 |
Dimensions & Weight
| Width | 5.84 cm |
|---|---|
| Depth | 1.39 cm |
| Height | 1.26 cm |
| Weight | 40 g |
Dimensions & Weight (Shipping)
| Shipping Width | 12 cm |
|---|---|
| Shipping Depth | 20.5 cm |
| Shipping Height | 35 cm |
| Shipping Weight | 60 g |
Manufacturer Warranty
| Service & Support | Limited warranty - lifetime |
|---|
Key selling points
- 100% Compatibility with Dell EMC QSFP-40G-ESR4 guaranteed
- StarTech.com SFP modules are backed by a lifetime warranty
- Meets or exceeds OEM specifications and Multi-Source Agreement (MSA) industry standards
- Low power consumption
- Hot-swappable with fiber-optic modules
References
MPN: QSFP40GESR4E
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04/06/2026 08:19:15