The price listed is for 10 units.

Used FTLX8571D3BCV-IT 10GBASE-SR SFP+ Transceiver for X520-DA2/SR2

You will receive items as seem in the pictures.
Product Features: Operating data rate up to 10.3Gbps 850nm VCESL Transmitter Distance up to 300m @50 / 125 um MMF Single 3. 3V Power supply and TTL Logic Interface Duplex LC Connector Interface, Hot Pluggable Compliant with MSA SFP+ Specification SFF-8431 Compliant with 10G 1200-M5-SN-I and 1200-M6-SN-I FC standard Compliant with 8.5G 800-M5-SN-I and 800-M6-SN-I FC standard Compliant with 4.25G 400-M5-SN-I and 400-M6-SN-I FC standard Compliant with 2.125G 200-M5-SN-I and 200-M6-SN-I FC standard Compliant with 1.0625G 100-M5-SN-I and 100-M6-SN-I FC standard Compliant with IEEE 802.3ae 10GBASE-SR/SW Operating Case Temperature Standard:0℃~+70℃ Applications: ● 10GBASE-SR at 9.953Gbps ● 10GBASE-SW at 10.3125Gbps ● 1000Base-SX Ethernet ● 8x FC at 8.5Gbps ● 4x FC at 4.25Gpbs ● 2x FC at 2.125Gpbs ● 1x FC at 1.0625Gbps ● Other Optical Link 90 days warranty