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 version of the EdgeOptic 10G-SFP-T multi-vendor 10GBASE-T copper SFP+ transceiver. EdgeOptic programs the module EEPROM to match the Arista SFP-10G-MRA-T vendor profile, so the transceiver is accepted 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 documentation.

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 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, 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 Clause 126 for 5GBASE-T and Clause 96 for 2.5GBASE-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 on Arista platforms supporting MRA-T.

Per the Arista TOI documentation, SFP-10G-MRA-T support requires Arista EOS 4.28.0F or later. Verify the target Arista switch model and EOS release against the current Arista Transceiver Compatibility and Interoperability Guide before deployment, since the MRA-T supported-platform matrix continues to evolve with newer EOS trains. Because this is a copper module, DOM telemetry is scoped to 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.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. 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.