TP-Link TL-SM321B - V2 - SFP (mini-GBIC) transceiver module - GigE - 1000Base-BX - LC/UPC single-mode - up to 10 km - 13 | Walmart Canada
TP LINK TL SM311LM Gigabit SFP module 1000Base SX Multi mode Fiber Mini GBIC Module Up to 550220m distance Plug and Play LCUPC interface - Office Depot