This 100GBASE-SR4 QSFP28 module is the standard short-reach choice for spine-leaf fabrics and high-density switching, running four parallel 25G lanes over an MPO-12 multimode trunk for up to 100 meters on OM4.
Beyond native 100G mode, the module supports 4x25G breakout when paired with MPO to LC harness cables, making it a flexible building block for mixed-speed rows. Compliance with IEEE 802.3bm and the QSFP28 MSA guarantees interoperation with standards-based equipment.
100G QSFP28 SR4 Features
- Four independent 25.78Gbps lanes over MPO-12
- Up to 70m on OM3 and 100m on OM4 fiber
- 850nm VCSEL transmitter array
- Per-lane DOM monitoring via I2C
- IEEE 802.3bm and QSFP28 MSA compliant
- Supports 4x25G breakout mode
Typical Applications
- Spine-leaf 100G data center fabrics
- High-density Cisco Nexus switching
- 4x25G breakout to SFP28 servers
- Intra-hall 100G links over OM4
Fiber Optic Kenya supplies 100G QSFP28 SR4 to ISPs, contractors and enterprises across Kenya and the wider East African region, with project support from our Nairobi team.