Arista SFP-10G-T-AR Compatible Standard 10GBASE-T SFP+ Copper Transceiver

EdgeOptic's Arista SFP-10G-T-AR compatible is an Arista-coded 10GBASE-T copper SFP+ transceiver for Arista switches with SFP+ ports. EdgeOptic programs the module EEPROM to match the Arista SFP-10G-T-AR vendor profile, so the transceiver is accepted as an Arista-genuine module by Arista EOS inventory on platforms that reference this ordering code. The part is the drop-in alternative to the native Arista SFP-10G-T-AR on equipment that carries this SKU in its transceiver compatibility documentation.

The -AR suffix is Arista's designation for Arista-original transceivers, analogous to the authenticity suffix conventions used by other network OEMs. It is a vendor-origin marker, not an acronym for a technical feature. SFP-10G-T-AR is the standard Arista 10GBASE-T SFP+ copper transceiver for Arista platforms that natively handle sub-10G BASE-T rates on their SFP+ ports. It differs architecturally from the SFP-10G-MRA-T, which is the dedicated Multi-Rate Adapter with explicit rate-conversion capability introduced in EOS 4.28.0F for platforms that do not natively handle sub-10G BASE-T on SFP+. Selection between the two depends on whether the target Arista switch needs the MRA rate-adapter path or handles multi-speed negotiation natively.

The transceiver operates per IEEE 802.3an for 10GBASE-T with multi-speed negotiation to 5GBASE-T (IEEE 802.3bz), 2.5GBASE-T (IEEE 802.3bz) and 1000BASE-T (IEEE 802.3ab) on compatible Arista host ports. Reach is up to 30 m at 10G on Cat6a or Cat7 copper. Electrical and management interfaces follow SFF-8431 and SFF-8432. Operating temperature covers 0 to 65 °C commercial grade with CE and RoHS certification. Copper SFP+ modules draw more power than fibre SFP+ and require a high-power SFP+ cage, which Arista switch platforms qualifying SFP-10G-T-AR provide on their SFP+ slots.

Arista publishes the authoritative SFP-10G-T-AR platform list in the Arista Transceiver Compatibility and Interoperability Guide. Verify the target switch model and EOS release against the current Transceiver Guide before deployment. Not every SFP+ port on every Arista platform qualifies 10GBASE-T copper; confirm per-port power budget and SFP+ class on the specific switch before commissioning. Because this is a copper module, DOM telemetry is scoped to the fields that apply to a non-optical SFP+: case temperature, supply voltage, and link status. Transmit optical power, receive optical power and laser bias current do not exist on this part and are not reported.

For volume pricing, Arista Transceiver Guide verification on a specific switch model, or guidance on the T-AR vs MRA-T decision, contact our sales team.