Description This is a HP J4858B Transceiver, this item has been tested and refurbished by our technicians. 1000BASE-SX SFP Transceiver J4858B J4858B, J4858B-REF
![[NR]FTLF8519P2BNL-J3, SFP, 1000BASE-SX, XCVR](https://cdn11.bigcommerce.com/s-tvoefvfruy/images/stencil/500x659/products/22217/7545/Supermicro_GreenC_NewLogo_WhiteBackground__44345.1653714138.png?c=2 "[NR]FTLF8519P2BNL-J3, SFP, 1000BASE-SX, XCVR")