845966-B21: HPE 100Gb QSFP28 MPO SR4 100m Transceiver
HPE 100Gb QSFP28 MPO SR4 100m Transceiver. Listed by HPE as a transceiver for the Apollo 6500 Gen10 Plus. The pairing comes from the vendor QuickSpecs, which also gives the quantity limits and any controller, firmware or slot requirements. Check those rules and the part number suffix before buying a used unit.
Specifications
| Part number | 845966-B21 |
|---|---|
| Brand | HPE |
| Type | Transceivers |
| Speed gbps | 100 |
| Vendor description | HPE 100Gb QSFP28 MPO SR4 100m Transceiver |
Fits these models
Check compatibility with HPE
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that HPE has tested with the HPE 845966-B21.
- Compatibility HPE SPOCK (storage, SAN and host compatibility)
- Part lookup HPE PartSurfer (spare and option part numbers)
- Support HPE Support Center
Buying or selling 845966-B21?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- HPE Apollo 6500 Gen10 Plus System QuickSpecs, checked 2026-10-28