Arista SFP-10G-RA-1G-SX Compatible Rate-Adapting SFP+

Arista
SFP+
10G
Duplex
400 m
SFP-10G-RA-1G-SX Arista Compatible 10G SFP+ 300M Transceiver

Arista compatible SFP-10G-RA-1G-SX - Key Features

  • Compatibility: Arista
  • 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

Arista SFP-10G-RA-1G-SX Price

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Arista compatible SFP-10G-RA-1G-SX 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

Arista compatible SFP-10G-RA-1G-SX Datasheet

v3

Complete technical specifications and product details

Updated:Jan 16, 2026Format:PDF

Arista compatible SFP-10G-RA-1G-SX Description

EdgeOptic's SFP-10G-RA-1G-SX compatible is an Arista-coded version of the EdgeOptic 10G-SFP-300 multi-vendor multi-rate SFP+ transceiver, configured as a rate-adapting optic. SFP-10G-RA-1G-SX is Arista Networks' ordering code for a 10G-host-to-1G-media rate-adapting SFP+, where the host-side electrical interface runs at 10G XFI and the fiber-side optical interface runs at 1000BASE-SX. The optic carries Arista-recognized EEPROM identification so switch firmware registers the module under the standard transceiver-acceptance policy.

The host-side interface presents 10G XFI to the Arista switch port, while internal rate-adaptation circuitry drives the optical engine at the 1000BASE-SX 1.25 Gbps line rate per IEEE 802.3z. The fiber link runs at 1G, not at 10G; this is the critical distinction from a standard 10GBASE-SR SFP+. Fiber reach follows the 1000BASE-SX specification at 850 nm: up to 220 m on OM1, 550 m on OM2, with OM3 and OM4 reach per the 1000BASE-SX profile rather than the 10GBASE-SR profile. DDM telemetry per SFF-8472 exposes the standard transceiver health parameters: temperature, supply voltage, TX bias, TX power, and RX power. Form factor is SFP+ (SFF-8431 MSA) at the standard commercial operating range.

The rate-adapting profile suits deployments where an Arista 10G switch port needs to connect to legacy 1G 1000BASE-SX fiber infrastructure without swapping the switch-side optic to a 1G SFP. The host-side rate adaptation absorbs the 10G-to-1G signaling difference inside the module, so the switch port remains a 10G XFI cage from the host perspective. Verify the SFP-10G-RA-1G-SX ordering code against the current Arista transceiver compatibility documentation for the target switch generation, since rate-adapting optic support varies across Arista 7050, 7060, and 7280 platforms by EOS release. SFP+ optics do not auto-negotiate at the optical layer; the rate-adapting function is a host-side electrical bridge, not an optical negotiation.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For Arista 10G-to-1G fiber migration planning, mixed-rate switch deployment, or bulk SFP-10G-RA-1G-SX inventory, contact our sales team.

Frequently Asked Questions

What fiber reach does the SFP-10G-RA-1G-SX support, 10GBASE-SR reach or 1000BASE-SX reach?

1000BASE-SX reach. The fiber link runs at the 1.25 Gbps 1000BASE-SX line rate per IEEE 802.3z, so the reach envelope follows 1000BASE-SX (typically up to 220 m on OM1, 550 m on OM2) and not the 10GBASE-SR 300 m OM3 / 400 m OM4 envelope. On OM3 and OM4 fiber, reach follows the 1000BASE-SX specification per IEEE 802.3z Table 38-6 rather than the 10GBASE-SR envelope; plan cable-length budgets against 1000BASE-SX specifications for the installed fiber grade. The 10G XFI rate exists only on the host-side electrical interface between the switch ASIC and the module; the optical signal on the fiber is 1G.