HPE 25Gb SFP28 SR 100m Transceiver

The HPE 845398-B21 is a transceiver that uses the SFP28 form factor to deliver 25 Gigabit Ethernet connectivity without the expense of a full network overhaul. Swap it into any compatible port and your links jump to 25 Gb while cabling and switch infrastructure stay largely the same.

Designed for multimode fiber runs up to 100 meters, the module connects through a standard duplex LC interface. That reach is ideal for linking top-of-rack switches to spine layers, aggregating storage traffic within the same data hall, or extending high-speed lanes between adjacent server rows.

Installation is straightforward. Slide the module into an open SFP28 slot, latch the LC connectors, and the device comes online instantly with full duplex negotiation. Because it is hot swappable, there is no need to power down equipment or schedule lengthy maintenance windows.

The housing measures only 13.8 mm wide, 55.7 mm long, and 11.9 mm high, and it weighs just 19.2 grams. That compact footprint keeps cable management clean, preserves airflow in crowded racks, and frees up space for additional equipment.

Whether you are supporting virtualized clusters, feeding data to flash-based storage arrays, or reducing backup windows, the added bandwidth helps applications respond faster and finish jobs sooner. The transceiver follows the 25GBase-SR standard, so it can interoperate with other compliant optics on the far end of the link.

• 25 Gigabit Ethernet data rate increases throughput without a major hardware refresh
• Up to 100 meter reach over OM3 or OM4 multimode fiber using duplex LC connectors
• Hot swappable design fits any device that offers an SFP28 slot
• Full duplex operation supports simultaneous sending and receiving of data
• Space saving housing measures 13.8 x 55.7 x 11.9 mm
• Light 19.2 gram weight eases handling and keeps cable bundles manageable
• Standards based 25GBase-SR interface ensures broad compatibility across vendors
• Single LC port means fewer cables and simpler installation