Intel FTLX8571D3BCVI31 Compatible 10GBASE-SR SFP+ Transceiver

Intel
SFP+
10G
Duplex
400 m
Intel Compatible FTLX8571D3BCVI31 SFP+ 10G module

Intel compatible FTLX8571D3BCVI31 - Key Features

  • Compatibility: Intel
  • Media Type: Multi-Mode Fiber (MMF) -OM3/OM4/OM5
  • Fiber Count: Duplex
  • Connector: Double LC/UPC
  • Maximum Distance: 400 m
  • Average Link Budget: 6.1 dB
  • Tx Wavelength: 850 nm
  • Supported Data Rate: 1.25 Gbps - 11.32 Gbps
  • DDM/DOM: Supported
  • Temperature Range: Standard 0°-70°C

Intel FTLX8571D3BCVI31 Price

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Standard recommended retail price ex VAT:
7.90
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Intel compatible FTLX8571D3BCVI31 Specifications

Form Factor
SFP+
Media Type
Multi-Mode Fiber (MMF) -OM3/OM4/OM5
Fiber Count
Duplex
Connector
Double LC/UPC
Maximum Distance
400 m
Average Link Budget
6.1 dB
TX Wavelength
850 nm
RX Wavelength
850 nm
Supported Data Rate
1.25 Gbps - 11.32 Gbps
Supported Ethernet Applications
10G Ethernet (10.31Gbps), Gigabit Ethernet (1.25 Gbps)
Supported Fiber Channel Applications
10G Fiber Channel (10.52 Gbps), 1G Fiber Channel (1.0625 Gbps), 2G Fiber Channel (2.125 Gbps), 4G Fiber Channel (4.25 Gbps), 8G Fiber Channel (8.5 Gbps)
SDH/SONET Standards
STM-64 (9.95Gbps)
DDM/DOM
Supported
Tx Wavelength Bandwidth
20 nm (840-860 nm)
Rx Wavelength Bandwidth
20 nm (840-860 nm)
Minimum Transmitting Power
-5 dBm
Maximum Transmitting Power
0 dBm
Receiver Sensitivity
-11.1 dBm
Receiver Overload
0 dBm
Dispersion
110 ps/nm
Transmitter Type
VSCEL Laser
Receiver Type
PIN photodiode
Temperature Range
Standard 0°-70°C
Power
+3.3V single power supply
Compliance
CE,Class 1 FDA and IEC60825-1 Laser Safety Compliant,RoHS,SFF-8431,SFP MSA

Intel compatible FTLX8571D3BCVI31 Datasheet

v3

Complete technical specifications and product details

Updated:Jan 16, 2026Format:PDF

Intel compatible FTLX8571D3BCVI31 Description

EdgeOptic's FTLX8571D3BCVI31 compatible is an Intel-coded version of the EdgeOptic 10G-SFP-300 multi-vendor 10GBASE-SR SFP+ transceiver. Intel-recognized EEPROM lets the optic register cleanly on Intel SFP+ network adapter cages, so the host accepts the module without a vendor-mismatch alert under Intel Ethernet drivers. One universal SR hardware platform, 80+ vendor codes, including this Intel-coded variant.

Optical specifications, 10GBASE-SR class. 850 nm VCSEL transmitter, PIN photodiode receiver, multi-mode duplex LC. Reach is 300 m on OM3 and 400 m on OM4. 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 10G Ethernet, Gigabit Ethernet, 1G to 10G Fibre Channel, and STM-64. DDM/DOM supported for live link diagnostics. Compliance: SFF-8431, SFP MSA, IEEE 802.3ae, RoHS, IEC60825-1 Class 1 laser safety. Operating range 0 to 70°C commercial.

FTLX8571D3BCVI31 is the Intel-OEM-coded variant of the Finisar FTLX8571 10GBASE-SR SFP+ gen-1 family. The base FTLX8571 part is manufactured by Finisar (now part of Coherent following the II-VI 2019 acquisition and Coherent merger in 2022). The BCVI31 portion identifies this as an Intel OEM-coded variant on the base FTLX8571D3BCV. The I31 segment does not denote an industrial temperature grade; the optic operates at the standard commercial range, 0 to 70 degrees Celsius.

Designed for Intel SFP+ network adapters, including X520-DA2 on the 82599 chipset, X710-DA2 on the FM10000 chipset, XXV710 25G/10G adapters running at 10G, and E810-xxVDA adapters in 10G mode. The Intel Ethernet driver verifies the optic vendor identifier on these adapters; the BCVI31 coding maps to the Intel-recognized identifier the driver expects on these platforms. Intel X540 and X550 are 10GBASE-T copper NICs with RJ-45 ports and no SFP+ cages, so this SFP+ optic is not applicable to those adapters by physical port type.

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 Intel SFP+ adapter platform questions, BCVI31 versus base FTLX8571D3BCV coding selection on a specific Intel adapter, or bulk pricing on multi-server Intel X710 / E810 deployments, contact our sales team.

FTLX8571D3BCVI31 FAQ

Will FTLX8571D3BCVI31 work in X520 and X710 adapters without additional configuration?

Yes. The Intel X520 (82599 chipset) and X710 (FM10000 chipset) SFP+ adapters verify the optic vendor identifier during driver load. EdgeOptic codes this compatible with the BCVI31 Intel-recognized EEPROM identifier, so the adapter accepts the optic and lists it under the normal Intel SFP+ inventory without an 'unsupported SFP+' warning. Verify against the Intel Ethernet Adapter User Guide for the driver release in use; vendor identifier support evolves across driver versions.

Does the -I31 suffix mean the optic is different from the standard FTLX8571D3BCV?

The optical specifications match the base FTLX8571D3BCV: 850 nm VCSEL, 300 m on OM3 / 400 m on OM4, LC duplex, multi-rate 1G to 10G envelope. The -I31 portion is the Intel platform revision segment of the Intel-OEM-coded variant; together with the BCVI prefix it identifies the Intel-coded EEPROM programming that Intel SFP+ adapter drivers expect to see during vendor identifier verification. The physical optic and the optical envelope are unchanged from the base FTLX8571D3BCV; the suffix affects EEPROM coding, not the optical layer.

Can I use this optic in an Intel X540 or X550 adapter?

No, and the reason is a physical port-type mismatch rather than a coding issue. The Intel X540 and X550 are 10GBASE-T copper Ethernet adapters built around RJ-45 copper ports; they do not have SFP+ cages and physically cannot accept an SFP+ transceiver. FTLX8571D3BCVI31 is an SFP+ optical module for fiber, so it does not connect to a BASE-T copper adapter regardless of EEPROM coding. For 10G fiber connectivity, use Intel SFP+ adapters such as X520-DA2, X710-DA2, XXV710, or E810-xxVDA, which expose SFP+ cages and accept this optic.