The PT-C88F3XECL is a 400G CFP8 PAM4 transceiver that is designed by using 28G EML lasers to fully comply with the IEEE 802.3bs 400GBASE-FR8 & LR8 standard for link distances of up to 2 and 10 km, respectively. It also complies with the CFP8 Multisource Agreement (MSA) CFP8 Hardware Specification. The 400GBASE-FR8 & LR8 uses less than half the power per GB compared to a 100G CFP4 solution. It has an integrated 8 x 28G LAN-WDM transmitter and receiver. The tranceiver operates over a temperature range from 0 to 70 C.