HPE Q2P64A Compatible 25GBASE-SR SFP28 for HPE StoreFabric M-Series (SN2410M, SN2700M)

EdgeOptic’s Q2P64A compatible is an HPE-coded 25GBASE-SR SFP28 version of the EdgeOptic 25G-SFP28-100 multi-vendor 25GBASE-SR SFP28 transceiver. It is built as a direct replacement for the HPE Q2P64A (spare part 878406-001) and ships with HPE-recognized EEPROM, so HPE StoreFabric M-Series switches identify the optic as a native HPE part. HPE labels this SKU “SFP28 SW” (Short Wave) in the StoreFabric Ethernet Transceivers catalog, which is HPE’s naming convention for the 850 nm 25GBASE-SR specification; the IEEE standard and the optical behavior are 25GBASE-SR per IEEE 802.3by Clause 112.

Optical behavior follows the 25G-SFP28-100 family root: 100 m on OM4 or OM5 multimode fiber, 70 m on OM3, 850 nm VCSEL transmitter, PIN photodiode receiver, LC/UPC duplex connector. Line signaling rate spans 10.31 to 25.78 Gbps, supporting both 10GBASE-SR and 25GBASE-SR host rates. Transmit power is −5 to +2.4 dBm, receive sensitivity is −10.3 dBm, and the link budget is 5.3 dB with host RS-FEC per IEEE 802.3by Clause 108. DOM telemetry is exposed per SFF-8472. Power consumption is 0.3 W maximum over the 0 to 70°C commercial case temperature range. Q2P64A is HPE’s 100 m StoreFabric M-Series SKU, distinct from R0R42A which is the SFP28 OPN HPE pairs with ProLiant DL servers and Synergy compute; verify its reach spec against the HPE R0R42A QuickSpecs.

HPE catalogs Q2P64A under StoreFabric Ethernet Transceivers and pairs it with the M-Series switching line: SN2410M (25GbE leaf with 100GbE uplinks) and SN2700M (100GbE spine with 25G breakout). The expected deployment is 25G server-facing or inter-rack aggregation over OM4 multimode out to 100 m, with 100 m on OM5 and 70 m on OM3. Q2P64A is HPE’s commercial-temperature pull-tab variant and uses the standard LC/UPC duplex interface. The HPE M-Series QuickSpecs are the authoritative reference for the specific chassis sub-model, firmware release, and qualified-optic table; verify against those QuickSpecs for the active chassis before order placement.

On HPE StoreFabric M-Series chassis the practical interoperability concern is the optical-validation check the switch runs on transceiver insertion. EdgeOptic’s HPE-coded EEPROM carries the vendor and part-number strings the M-Series identification path expects; confirm against the HPE StoreFabric M-Series QuickSpecs and the local validation policy before deployment. The HPE M-Series QuickSpecs and the StoreFabric Ethernet Transceivers catalog remain the authoritative references for per-chassis qualification.

On FEC, the Q2P64A optical path is agnostic to host FEC mode. 25G FEC is configured on the MAC layer at each link partner. In typical M-Series 25G deployments, RS-FEC per IEEE 802.3by Clause 108 is the default end-to-end path and is the mode this module is specified against. Clause 74 Fire Code FEC (BASE-R) and no-FEC operation are supported at the optical layer where both link partners are configured for that profile. DOM registers for transmit power, receive power, supply voltage, laser bias current, and module case temperature are accessible through the standard SFF-8472 read path on the M-Series management interface and through ethtool on Linux hosts with a compatible SFP28 driver.

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, HPE EEPROM strings for pre-deployment verification against a specific StoreFabric M-Series chassis, or a cross-reference against R0R42A for ProLiant DL runs under 30 m, contact our sales team.