| Model |
Differences |
| QSFP-40G-SR4 |
Supports multi-mode fiber networks |
| QSFP-40G-ER4 |
Supports longer transmission distance up to 30km |
| QSFP-40G-LR4 |
Supports longer transmission distance up to 40km |
QSFP-40G-eSM4 Specifications |
| Product Model |
QSFP-40G-eSM4 |
| Brand |
Huawei |
| Module Type |
40GBase-eSM4 Optical Transceiver |
| Form factor |
QSFP+ |
| Optical fiber type |
SMF |
| Connector type |
MPO/APC (8-strand or 12-strand, type B, female connector) |
| Maximum Distance |
10km |
| Transmission rate [bit/s] |
40 Gbit/s |
| Target transmission distance [km] |
Single-mode fiber: 10 km |
| Center wavelength [nm] |
1310 nm |
| Maximum Tx optical power [dBm] |
0.5 dBm |
| Minimum Tx optical power [dBm] |
-8.2 dBm |
| Minimum extinction ratio [dB] |
3.5 dB |
| Rx sensitivity [dBm] |
-12.6 dBm |
| Overload power [dBm] |
0.5 dBm |
| Compatible Devices |
Huawei switches and routers |
Introducing the QSFP-40G-eSM4, a 40GBase-eSM4 Optical Transceiver from Huawei. This QSFP+ module is designed for single-mode networks, supporting transmission distances of up to 10 kilometers at 1310nm wavelength. With its MPO connector, it allows for easy connectivity to four SFP+ Optical Transceivers.
Quick Spec
Table 1 shows the quick spec of QSFP-40G-eSM4.
| Module Type |
40GBase-eSM4 Optical Transceiver |
| Interface |
QSFP+ |
| Fiber Type |
Single-mode |
| Transmission Distance |
10km |
Product Features
- ● ● High-speed 40G transmission
- ● ● Compatible with QSFP+ interface
- ● ● Supports single-mode fiber networks
- ● ● Long-distance transmission up to 10km
- ● ● MPO connector for easy connection to SFP+ modules
Product Applications
- ● ● Data centers
- ● ● Telecommunication networks
- ● ● Enterprise networks
Supported Options
Table 2 shows the supported options of QSFP-40G-eSM4.
| Accessories |
Model |
| QSFP+ to SFP+ Converter Module |
QSA-40G-CU5M |
Compare to Similar Items
Table 3 shows the comparison to similar items of QSFP-40G-eSM4.
| Model |
Differences |
| QSFP-40G-SR4 |
Supports multi-mode fiber networks |
| QSFP-40G-ER4 |
Supports longer transmission distance up to 30km |
| QSFP-40G-LR4 |
Supports longer transmission distance up to 40km |
Get more information
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