Arista SFP-10G-RA-1G-SX Compatible Dual-Rate 10G/1G SFP+ Transceiver

EdgeOptic’s 10G-SFP-300 compatible is an Arista-coded dual-rate SFP+ transceiver that operates at both 10GBASE-SR (10.3125 Gbps) and 1000BASE-SX (1.25 Gbps). The SFP-10G-RA-1G-SX is Arista’s rate-adaptive optic for mixed-speed environments, where the “RA-1G-SX” suffix indicates rate adaptation down to 1G SX mode. The switch port auto-negotiates the line rate based on the remote end, making this module a practical choice when connecting 1G and 10G devices on the same switch without separate optic SKUs. EdgeOptic programs the EEPROM with Arista vendor ID, so the module registers correctly on 7050, 7060, and 7280 series platforms without generating unsupported-optic warnings.

Optical performance follows IEEE 802.3ae for 10GBASE-SR and IEEE 802.3z for 1000BASE-SX: 850 nm VCSEL transmitter, PIN photodiode receiver, and a minimum 6.1 dB link budget at 10G. The transmitter output power range is -7.3 to -1.0 dBm, and receiver sensitivity is -11.1 dBm or better at 10G line rate. Typical reach is 300 m on OM3 and 400 m on OM4 multimode fibre with LC duplex connectors at 10G rates; 1000BASE-SX reach extends to 550 m on OM2 per the 802.3z specification. DDM/DOM diagnostics report real-time TX power, RX power, bias current, temperature, and supply voltage per SFF-8472, with factory-calibrated alarm thresholds. The SFP+ form factor conforms to SFF-8432 mechanical and SFF-8431 electrical specifications. Operating temperature range is 0 to 70 degrees C (commercial grade). Power consumption stays under 1 W.

EdgeOptic tests each SFP-10G-RA-1G-SX compatible against current Arista EOS platforms before shipment. Quality checks include optical power measurements at calibrated reference conditions, connector end-face inspection under magnification, and full EEPROM validation covering vendor fields, serial number structure, and DDM calibration data. The module is CE and RoHS certified and compliant with SFP+ MSA standards (SFF-8431/SFF-8432). Typical deployment scenarios include data centre leaf switches with a mix of 1G server NICs and 10G uplinks, campus aggregation where older 1G access switches connect to new 10G Arista infrastructure, and lab environments requiring flexible port speeds without maintaining two separate optic inventories. For project-specific questions or bulk pricing, contact our sales team.