Hikvision HK-SFP-1.25G-20-1550 GbE SFP LC Fiber Transceiver [TX1550nm/1.25G, RX1310nm/1.25G, 20km]
SFP Module
Small form factor pluggable (SFP) MSA compatible
Single fiber bi-directional LC connector
Hot pluggable capability
Compliant with ROHS standard
Cost effective SFP solution, enables higher port densities and greater bandwidth
Supports 1.25G Ethernet
https://www.hikvision.com/ph/products/Accessories/Transmission-and-Display-Accessories/SFP-Modules/HK-SFP-1-25G-20-1550/