Intel FTLX8574D3BCV-IT Compatible 1G/10G Dual-Rate SFP+ SR

EdgeOptic's FTLX8574D3BCV-IT compatible is an Intel-coded (Coherent FTLX8574 generation) version of the EdgeOptic 10G-SFP-300 multi-vendor 10GBASE-SR SFP+ transceiver. The Intel EEPROM identifies the optic as a recognized Intel accessory on X520 and X710 family Ethernet Server Adapters, so the port enumerates under ethtool and the Intel ixgbe / i40e drivers without an unsupported-SFP+ message. The -IT suffix is Intel's general OEM EEPROM designation, not an industrial-temperature variant; the underlying optical platform runs the standard 0 to 70°C commercial range.

Optical specifications, dual-rate 10GBASE-SR / 1000BASE-SX. 850 nm VCSEL transmitter, PIN photodiode receiver, multi-mode duplex LC. Reach is 300 m on OM3 and 400 m on OM4 at 10G; at 1G, the same fibre supports longer links under 1000BASE-SX reach specifications per IEEE 802.3z. TX output power runs −5 to 0 dBm, receiver sensitivity −11.1 dBm, receiver overload 0 dBm, link budget 6.1 dB. Multi-rate capability spans 1.25 to 11.32 Gbps, covering Gigabit Ethernet, 10G Ethernet, and adjacent FC and STM-64 rates from the same optical platform. DDM/DOM is supported. Compliance: SFF-8431, SFP MSA, IEEE 802.3ae 10GBASE-SR, IEEE 802.3z 1000BASE-SX. Operating range 0 to 70°C commercial.

FTLX8574D3BCV-IT is supplied for Intel X520 and X710 Ethernet Server Adapter families, where the Intel EEPROM coding lets the optic register as a recognized accessory under ixgbe (X520) and i40e (X710) Linux drivers, and through ethtool's eeprom-dump output. The dual-rate 1G/10G capability covers servers running mixed-speed uplinks during migration windows. For specific Intel internal accessory part-code matching, verify against Intel's accessory compatibility matrix at quote stage.

The FTLX8574D3BCV base optical part is a Coherent (formerly Finisar) generation-2 dual-rate SFP+ design; II-VI Incorporated acquired Finisar in 2019 and rebranded as Coherent Corp in 2022. Intel codes two variants on this base: FTLX8574D3BCV-IT (this page, general Intel OEM designation) and FTLX8574D3BCV-I3 (Intel revision-3 EEPROM). Optical specs are identical, but the EEPROM revision determines which one the host firmware will register as a recognized accessory. The earlier-generation FTLX8571 family (BCV-IT and BCVIT1 variants) is a different optical base and is not interchangeable with the FTLX8574 generation. Order the exact suffix that matches the host's expected accessory list.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty included. For X520 / X710 NIC matching, EEPROM revision verification, or bulk pricing across the Intel SFP+ family, contact our sales team.