QSFP28
- is a new form factor defined in SFF Committee specifications SFF-8636 and SFF-8665
- with the capability of four data lanes (quad) in the single module, QSFP28 provides 100Gbps or 128Gbps aggregated data speed
- it shares the same principle as QSFP+; the critical difference is the data rate
- generally, it is intended for 100 Gigabit Ethernet, EDR InfiniBand, or 32G Fibre Channel networks
- using a QSA adapter, you may also convert the 100G QSFP28 port into the SFP28 port
- in the 100G optics market, QSFP28 transceivers are more popular than CFP, CFP2, and CFP4 form factors