Arista SFP-10G-MRA-T Compatible Multi-Rate Adapter 10GBASE-T SFP+ Copper Transceiver

EdgeOptic's Arista SFP-10G-MRA-T compatible is an Arista-coded Multi-Rate Adapter copper SFP+ transceiver for Arista switches that need explicit rate conversion on their 10G SFP+ ports. EdgeOptic programs the module EEPROM to match the Arista SFP-10G-MRA-T vendor profile, so the transceiver is accepted as an Arista 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-MRA-T on equipment that calls for this SKU in its transceiver compatibility list.

MRA is Arista's Multi-Rate Adapter designation, confirmed on the Arista Transceiver-of-Interest (TOI) documentation for this SKU. The module presents a fixed 10G interface to the switch port on the system side and negotiates 100M, 1G, 2.5G, 5G or 10G BASE-T on the copper line side. This rate-adapting architecture is the differentiator against the standard SFP-10G-T-AR, which is the Arista-genuine 10GBASE-T SFP+ for platforms that natively handle sub-10G rates on SFP+ ports. If the Arista switch needs the MRA to reach a legacy 100M or 1G endpoint from a 10G SFP+ slot, the SFP-10G-MRA-T is the correct ordering code. If the switch natively negotiates the required speed, use SFP-10G-T-AR.

The transceiver operates per IEEE 802.3an for 10GBASE-T, IEEE 802.3bz for 2.5GBASE-T and 5GBASE-T, IEEE 802.3ab for 1000BASE-T and IEEE 802.3u for 100BASE-T. Reach is up to 30 m at 10G on Cat6a or Cat7 copper, with extended reach at the sub-10G rates. 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 supporting the MRA-T provide on their SFP+ slots.

Arista introduced SFP-10G-MRA-T support in EOS 4.28.0F. The 720XP-48ZC2 campus platform requires EOS 4.31.2F or later for MRA-T support. 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. Verify compatibility against the current Arista Transceiver Compatibility and Interoperability Guide for the target switch model and EOS release before deployment, since the MRA-T supported-platform matrix continues to evolve with newer EOS trains.

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