Модуль TP-LINK TL-SM311LS - buy at the price of 598.00 грн. in moyo.ua | imall.com
Optcore Philippines - TP-Link TL-SM311LS Compatible 1000BASE-LX SFP Module (SMF, 1310nm, 10km, LC) The TL-SM311LS compatible 1000Base-LX SFP module is designed for use with TP-Link networking equipment. It is programmed and tested
TP-Link TLSM311LS Transceiver for sale online | eBay