Intel E10GSFPSR Ethernet SFP+ SR Optics Dual Rate 10GBASE-SR 1000BASE-SX 850 nm LC Multimode for X520 and X710
Intel E10GSFPSR — SFP+ SR Optic for Intel Adapters
The Intel Ethernet SFP+ SR Optics (E10GSFPSR) is Intel’s short-reach multimode optic for its 10GbE SFP+ network adapters. It runs at either 10GBASE-SR or 1000BASE-SX at 850 nm over an LC duplex connection, reaching 300 m at 10G on OM3 fibre, with digital diagnostics. It is the optic to order when an Intel X520 or X710 adapter in a server needs a fibre link to the switch. In practice, multimode optics are the cheaper choice for links inside one building: most server rooms and floor risers already carry OM3 or OM4 fibre, and the module plus a short patch cord is all a port needs. Before you order, check the fibre grade printed on the cable jacket and the real length of the run, including patch panels.