... date of shipment. What we supplyWe supply all kinds of compatible optical transceiver modules, including SFP, GBIC, SFP+, XENPAK, X2 , ... ,CWDM,DWDM and other special transceiver modules. Our products are compatible with Cisco, 3COM, H3C, HP, Extreme, Foundry, Avaya, D-link, ... Alcatel, Riverstone, Enterasys, Netgear, Nortel, Juniper, Ruijie, Zyxel, Huawei,etc. compatible 10g cisco cwdm sfp+ 80km