SFP, small form-factor pluggable for short, is a compact, hot-pluggable transceiver module used for both telecommunication and data communications applications.
The Quad Small Form-factor Pluggable (QSFP) is a compact, hot-pluggable transceiver used for data communications applications. The form factor and electrical interface are specified by a multi-source agreement (MSA) under the auspices of the Small Form Factor Committee. It interfaces networking hardware (such as servers and switches) to a fiber optic cable or active or passive electrical copper connection. It is an industry format jointly developed and supported by many network component vendors, allowing data rates from 4x1 Gb/s for QSFP and 4x10 Gbit/s for QSFP+ and to the highest rate of 4x28 Gbit/s known as QSFP28 used for 100 Gbit/s links.
The difference between QSFP and SFP is mainly in data rates. As shown in the table
|
|
QSFP |
SFP |
|
Data rates |
4 x 1 Gbit/s QSFP 4 x 10 Gbit/s QSFP+ 4 x 14 Gbit/s QSFP+ (QSFP14) 4 x 28 Gbit/s QSFP+ (QSFP28) |
1 and 2.5 Gbit/s SFP 10 Gbit/s SFP+ 25 Gbit/s SFP28 |
QSFP vs. SFP
- QSFP stands for 4 channels of SFP traffic.
- Allowing data rates is difference.