What is the difference between SFP+ and SFP
The difference between SFP+ and SFP. The pinout of SFP and SFP+ connectors are identical. However, SFP is data rate of 6Gb/s, whereas SFP+ is designed for 10Gb/s.
The SFP receptacles and plugs are not as well impedance matched as SFP+ receptacles and plugs.
Also SFP+ cable is designed for 10Gb/s whereas SFP cable may not be able to satisfactorily transmit that rate.
SFP+ module is smaller than XFP module. It transferred the circuit, which is used for the clock and data recovery, from the chip to the card. With its miniaturization, low cost and other advantages, SFP+ meets the high-density demand of device. From 2002 to 2010, SFP+ has replaced XFP to be the mainstream of 10G market.
Quad Small Form-factor Pluggable, the QSFP+ has 4-channel SFP+ interfaces. QSFP+ is designed as the high-speed pluggable solution to meet higher-density of market. As a fiber optical solution, the speed and density are both better than the 4-channel CX4 interface. Since QSFP+ can support 4 channels’ data transmission at 10Gbps per channel with the same port size of XFP, the density of QSFP+ ups to 4 times of XFP products.
The CSFP transceivers are high performance, cost effective modules supporting 2.488Gbps and 20km transmission distance with SMF. The transceiver consists of three sections: a laser transmitter, a photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements. The CSFP MSA defines a transceiver mechanical form-factor with latching mechanism and a host board, SFP-like, electrical edge connector and cage. The CSFF MSA also defines a transceiver mechanical form-factor.The dual-channel CSFP is compatible with the standard SFP cage. The single-channel CSFP and CSFF are half the size of the industry-standard SFP and