https://www.ebay.com/sch/i.html?_nkw=Addoncomputer+Com+Qsfp+Module&_sacat=0&_dmd=2

Addoncomputer.Com Qsfp+ Module

Regular price
$389.00
Sale price
$278.00

QSFP+ transceiver module (equivalent to: Extreme Networks 10319) - 40 Gigabit Ethernet - 40GBASE-SR - MPO multi-mode - up to 492 ft - 850 nm