GrenTech 40G QSFP+ SR4 compliant with SFF-8436 and IEEE 802.3ba with a 4 channel VCSEL array and a 4 PIN array, the rate of a single channel is 10Gbps. It is an MPO connector and it can transmit up to 400m over OM3 cable. This module has the characteristics of low power consumption and stable performance, widely uses in 40G Ethernet, data centers and fiber channels etc.