SFP-1G-SX-AR: Arista 1000BASE-SX SFP Optical Transceiver Module
Also listed as: SFP-1G-SX, SFP-1G-SX-C
The Arista SFP-1G-SX-AR is a 1000BASE-SX SFP optical transceiver providing Gigabit Ethernet connectivity up to 550 meters over multimode fibre for Arista switches.
Specifications
| Part number | SFP-1G-SX-AR |
|---|---|
| Brand | Arista |
| Type | Transceivers |
| Other numbers | SFP-1G-SX, SFP-1G-SX-C |
| Status | current |
| Form factor | SFP |
| Speed | 1GbE |
| Wavelength nm | 850 |
| Connector | LC duplex |
| Cable type | Multimode Fibre |
| Max distance m | 550 |
About the SFP-1G-SX-AR
The Arista SFP-1G-SX-AR optical transceiver delivers standard Gigabit Ethernet connectivity across short-reach multimode fibre backbones. Operating at 850 nanometers, it transmits reliable data links up to 550 meters on OM2 optical cabling, connecting legacy distribution panels and remote building risers into modern Arista fabrics.
Compatibility
Compatible with Arista 7020, 7050, 7150, 720XP, and 7280 Series switches equipped with dual-speed SFP/SFP+ interfaces. It is recognized natively by Arista EOS, enabling automated transceiver initialization and real-time digital diagnostic telemetry tracking.
How to identify a genuine unit
Housed in a compact SFP metallic casing with a black optical extraction latch bail indicating 850nm multimode optics. The top label bears the Arista logo, part number SFP-1G-SX, serial number barcode, optical class markers, and laser safety compliance information.
Buying used
Inspect the optical bore with a fiber microscope to verify that the lens surfaces are free of contaminants or scratch marks. Seat the module in a live switch port to verify that Arista EOS authenticates the SFP correctly and reports link status at 1000Mbps full duplex.
Fits these models
- Arista 7020R 7020TR-48
- Arista 7150S-24
- Arista 7150S-52
- Arista 7150S-64
- Arista 720D-48Y6
- Arista 720XP-24Y6
- Arista 720XP-48Y6
Check compatibility with Arista
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Arista has tested with the Arista SFP-1G-SX-AR.
- Compatibility Arista transceivers and cables
- Support Arista Support
FAQ
What is the maximum link distance for SFP-1G-SX-AR?
It supports links up to 550 meters on 50-micron multimode fibre and 220 meters on 62.5-micron fibre.
Can this transceiver be used in SFP+ ports?
Yes, on Arista switches supporting dual-speed 1G/10G SFP+ ports configured for 1Gbps operational speed.
Buying or selling SFP-1G-SX-AR?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Arista Transceiver and Cable Guide, checked 2026-10-27