Amazon.com: A Pair of 10G SFP+ Bidi Transceiver, LC Single-Mode Single Fiber Module, 10GBASE-BIDI 1270nm/1330nm for Cisco SFP-10G-BX20D-I/SFP-10G-BX20U-I, Ubiquiti UniFi, Mikrotik, and More, DOM, up to 20 km : Electronics
Cisco 10GBase-SR SFP+ LC PC MM Transceiver (SFP-10G-SR-S=)
LNK SFP-10G-L2 Industrial 10GBit/s SFP Module (Mini-GBIC) up to 550m