Cisco QSFP-40G-SR4-S Compatible 40GBASE-SR4 QSFP+ Optical Transceiver allows you to transmit at 40 Gbps over OM3 (100m) or OM4 (150m) with an MPO-12 male device interface. It conforms to IEEE 802.3ba 40GBASE-SR4 and the QSFP+ MSA and has Digital Optical Monitoring (DOM/DDM) capabilities that permit real-time monitoring of temperature, voltage, TX and RX power, and bias current values through SFF-8436 I2C. The typical power consumption is less than 1.5W with a bit error rate (BER) of 1E-12.
The module utilizes 4-channel VCSEL transmitters and PIN receivers supporting non-return-to-zero (NRZ) modulation and is optimized for parallel multi-mode fiber (MMF) links with laser-optimized OM3 and OM4 cabling. The connector supports a direct 40G link or 4x10G breakout to an SFP+ via MPO-8 to 4x LC duplex cables. The Cisco QSFP-40G-SR4-S Compatible 40GBASE-SR4 QSFP+ Optical Transceiver is best suited for Top of Rack, aggregation, and spine-leaf interconnects in data center switches, enterprise routers, or any application requiring 40G connections.
The operating temperature is between 0 to 70 degrees Celsius, with TX power between −7 to +1 dBm and a receiver sensitivity of ≤ −9.5 dBm over OM4. It has been verified and validated to work in a multi-vendor 40GbE MMF environment and will perform optimally while interconnecting devices that are using 40GbE 4xMMF in either a campus or cloud fabric.
Supported Models: Cisco QSFP-40G-SR4-S, Huawei QSFP-40G-SR4, Juniper Networks QFX-QSFP-40G-SR4, Arista QSFP-40G-SR4, Mellanox MC2210411-SR4, Dell Networking 430-4593, Brocade 40G-QSFP-SR4, Extreme Networks 10319, H3C QSFP-40G-SR4-MM850-NDDM, MikroTik Q+85DMTP150D, Ciena QSFP-SR4, Avago AFBR-79EQPZ, Edge-Core ET6401-SR4, Palo Alto Networks PAN-QSFP-40GBASE-SR4, Fortinet FG-TRAN-QSFP+SR, Intel E40GQSFPSR, F5 Networks F5-UPG-QSFP+, Alcatel-Lucent QSFP-40G-SR, Gigamon QSF-502, and more.
Specifications
| Brand | BYXGD QSFP-40G-SR4-S |
| Form Factor | QSFP+ |
| Max Data Rate | 41.25 Gbps aggregate |
| Lane Data Rate | 4 × 10 Gbps |
| Wavelength | 850 nm |
| Operating Wavelength Range | 840–860 nm |
| Fiber Type | OM3/OM4 MMF |
| Max Distance | 150 m (OM4) / 100 m (OM3) |
| Core Size | 50 μm |
| Modal Bandwidth | 2000 MHz·km (OM3); 4700 MHz·km (OM4) |
| Connector | MTP/MPO-12 male |
| Breakout | 4×10G via MPO-12 to 4×LC breakout |
| Modulation | NRZ |
| BER | 1E−12 |
| Transmitter Type | VCSEL |
| Receiver Type | PIN |
| TX Power | −7.6 to 2.4 dBm |
| Receiver Sensitivity | ≤ −9.5 dBm |
| Receiver Overload | 2.4 dBm |
| Extinction Ratio | >3 dB |
| Digital Diagnostics | DOM/DDM via SFF-8436 (I2C) |
| Power Consumption | <1.5 W |
| Operating Temperature | 0 to 70 °C (Commercial) |
| Protocols | IEEE 802.3ba 40GBASE-SR4; QSFP+ MSA SFF-8436 |
| Application Devices | Data center switches; enterprise routers; server NICs |
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