HG Genuine MTRA-3A90B Compatible 25GBASE-SR SFP28 for 25G SFP28 Host Platforms

EdgeOptic's MTRA-3A90B compatible is an HG Genuine-coded version of the EdgeOptic 25G-SFP28-100 multi-vendor SFP28 dual-rate 10G/25G SR transceiver. The MTRA-3A90B designation identifies this as an HG Genuine 25GBASE-SR SFP28 module. The module is programmed with HG Genuine-recognized EEPROM vendor and part-number strings so a host platform that recognizes HG Genuine-coded EEPROM strings reads the optic cleanly through the standard SFP28 management interface.

Optical behavior is 25GBASE-SR per IEEE 802.3by Clause 112 over duplex multi-mode fiber, with 10GBASE-SR support per IEEE 802.3ae on dual-rate SFP28 host ports. Line signaling rate is 10.3125 Gbps at 10GBASE-SR and 25.78125 Gbps at 25GBASE-SR. Reach is 100 m on OM4 and 70 m on OM3, all within the SFP28 SerDes envelope defined by SFP28 MSA SFF-8402.

Optical path is 850 nm VCSEL transmitter, PIN photodiode receiver, TX optical power −5 to +2.4 dBm, RX sensitivity better than −10.3 dBm, 5.3 dB link budget, LC/UPC duplex connector. Digital diagnostics are SFF-8472 Rev 12.0 compliant, exposing per-module temperature, supply voltage, TX bias, TX power and RX power through the host's standard transceiver-diagnostics interface. Power dissipation is 0.3 W, the module is hot-swappable, and the operating temperature range is 0 to 70°C commercial.

HG Genuine is the brand used by Wuhan Huagong Genuine Optics Tech Co., Ltd, a daughter company of the Huagong Tech group of Wuhan, China. HG Genuine is an OEM optical-transceiver manufacturer rather than a switch vendor, so platform scope for MTRA-3A90B is stated at MSA-compliant 25G SFP28 host level. The EdgeOptic compatible is built to the SFP28 MSA (SFF-8402 mechanical and high-speed electrical, SFF-8432 management interface, SFF-8472 diagnostics) so any chassis or NIC with 25G SFP28 cages reads the module through the standard interface. Verify the MTRA-3A90B against the target host's transceiver compatibility documentation before specifying the part.

On FEC, 25G FEC mode is configured at the MAC layer on each link partner and the optical path is agnostic to whether RS-FEC per IEEE 802.3by Clause 108 or BASE-R FEC is negotiated on the host. Confirm the FEC profile matches on both link partners during commissioning to avoid mismatch on mixed-vendor 25G aggregation. The module is symmetrically compatible with either FEC mode supported on the host port.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For HG Genuine-coded volume rollouts where MTRA-3A90B is the catalog SKU, multi-site pricing on a 25G aggregation deployment, or compatibility verification against a specific host firmware build, contact our sales team.