Sate Optics’s Loopback Transceivers series includes 10G SFP, 25G SFP28, 40G QSFP and 100G QSFP28. Loopback is a cost effective and high quality solutions to test transceivers ports.
Loopback are compatible with both copper and optical 10G SFP / 25G SFP28 / 40G QSFP / 100G QSFP28 enabled ports, they perfectly replicate the performance range of typical of a 10G SFP, 25G SFP28, 40G QSFP and 100G QSFP28 connection between equipped adapter cards, blade servers, routers, and switches.

40G QSFP Loopback

Part Number Model No. Picture Data Rate(Mbps) Wavelength Media Type Reach TX Power(dBm) RX Sens.(dBm) Temp.(℃) Note Datasheet
ST-40G-QSFP-LB0-0 40G-QSFP-LB0-0 40G / Copper / 0dBm 0W -20°C~85°C 40G Passive Loopback
ST-40G-QSFP-LB0-2.5 40G-QSFP-LB0-2.5 40G / Copper / 0dBm 2.5W -20°C~85°C 40G Passive Loopback
ST-40G-QSFP-LB3-0 40G-QSFP-LB3-0 40G / Copper / 3dBm 0W -20°C~85°C 40G Passive Loopback
ST-40G-QSFP-LB5-0 40G-QSFP-LB5-0 40G / Copper / 5dBm 0W -20°C~85°C 40G Passive Loopback