TP-Link TL-SM321B - SFP (mini-GBIC) transceiver module - GigE - 1000Base-BX - LC/UPC single-mode - up to 10 km - 1310 (TX) / 1550 (RX) nm

A compact mini‑GBIC SFP module supports 1.25 Gbps bidirectional WDM on single‑mode fiber up to 10 km, featuring LC/UPC connectors and 1310 nm transmit with 1550 nm receive for reliable high‑speed links.

Brand: TP-LINK
Model: TL-SM321B
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