Cheap And Discounts ADOP for Cisco Compatible QSFP28-BIDI-100G 100GBASE-SR BiDi QSFP28 SWDM4 100m DOM Duplex LC MMF Optical Transceiver Module Wholesale. Buy Directly From Merchant Shop1102817200 Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.