HPE Aruba JM533A Compatible 25GBASE-SR SFP28 for Aruba CX 8325, 8360, 8400, 6300 and 6400

EdgeOptic's JM533A compatible is an HPE Aruba-coded 25GBASE-SR SFP28 transceiver built as a direct replacement for the HPE Aruba JM533A (Aruba product code EC-SFP28-25G-SR). It ships with Aruba-recognized EEPROM so Aruba CX switches running ArubaOS-CX 10.xx identify the optic as a native HPE Aruba part. Link-up, receive-optical-signal and DOM telemetry surface through the standard AOS-CX show commands rather than through any vendor-specific override.

Optical behavior is 25GBASE-SR per IEEE 802.3by Clause 112 over duplex multi-mode fiber: 100m on OM4, 70m on OM3. Line signaling rate is 25.78125 Gbd, single-rate, per IEEE 802.3by Clause 112. Transmit power is -8.4 to +2.4 dBm, receive sensitivity -10.3 dBm, link budget 5.3 dB with host RS-FEC per IEEE 802.3by Clause 108. Duplex LC/UPC, DOM per SFF-8472, 0.3W typical power. Operating case temperature is 0 to 70 degrees Celsius.

JM533A is the current HPE Aruba ordering code listed in the AOS-S and AOS-CX Transceiver Guide (March 2026 edition) for 25GBASE-SR SFP28, complementing the older JL484A OPN. The JM533A SKU carries the Aruba Networking EC-prefix product code (EC-SFP28-25G-SR) and is listed in the HPE Aruba AOS-S and AOS-CX Transceiver Guide (March 2026 edition) for Aruba CX platforms with 25G SFP28 ports. Switch-side scope per the transceiver guide: Aruba CX 8325, CX 8360, CX 8400, CX 6300 and CX 6400 families with 25G SFP28 ports. JL484A remains the JL-prefix OPN for the same optical tier and is covered by a separate product page; On mixed-procurement estates where JL484A was the previous ordering code, the two OPNs are functionally equivalent at the optical layer and serve the same Aruba CX platforms; they carry different vendor-code EEPROM strings, so match the OPN to the original purchase order to avoid asset-management discrepancies.

On AOS-CX the optical validation path runs the module identification check against the vendor and part-number EEPROM strings. The EdgeOptic compatible carries the HPE Aruba strings that the AOS-CX validation path expects, so on standard AOS-CX images the module is accepted on the default acceptance path. Environments running hardened module policies on AOS-CX or operating under strict change-control regimes should verify the expected vendor and PN strings against the local policy before deployment; EdgeOptic can supply the exact EEPROM strings for allowlist entry on request. The HPE Aruba AOS-S and AOS-CX Transceiver Guide remains the authoritative reference for switch-family qualification.

On FEC, Aruba CX 25G SFP28 ports default to RS-FEC per IEEE 802.3by Clause 108, which is the mode the module is specified against. The optical path itself is agnostic to FEC mode: 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 FEC profile. FEC interoperability issues on AOS-CX arise principally when a link partner runs Consortium FEC or another non-IEEE FEC profile; for standard 25GBASE-SR between Aruba CX and an IEEE-FEC link partner, no per-port FEC override is needed. DOM registers for transmit power, receive power, supply voltage, laser bias current and module case temperature are accessible through standard SFF-8472 reads on the AOS-CX transceiver diagnostics output. Every unit is factory-tested to the 25GBASE-SR optical specification per IEEE 802.3by Clause 112 before dispatch.

For volume pricing, HPE Aruba allowlist EEPROM strings for pre-deployment verification against a specific Aruba CX chassis and AOS-CX image, or a cross-reference against the older JL484A OPN on mixed-procurement ArubaOS-CX estates, contact our sales team and we will respond within one business day.