Alternative to 877691-B21: Better-Value Equivalents in Stock
Comparing the 877691-B21 (HPE 877691-B21 InfiniBand EDR/Ethernet 841QSFP28 2-Ports 100GbE PCI Express 3.0 x16 Network Adapter for ProLiant Server) against alternatives? Pro Disk Network stocks 12 similar HP parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the 877691-B21
| SKU | 877691-B21 |
|---|---|
| Product | HPE 877691-B21 InfiniBand EDR/Ethernet 841QSFP28 2-Ports 100GbE PCI Express 3.0 x16 Network Adapter for ProLiant Server |
| Current price | $305.26 |
| Stock status | In Stock |
| Detail page | View 877691-B21 › |
Alternatives to 877691-B21
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
HPE 872726-H21 Infiniband Edr/Ethernet 2-Ports 100GbE QSFP28 PCI-Express 3.0 x16 Network Adapter for ProLiant DL580 Gen10
SKU: 872726-H21
Price: $305.26
HPE P23842-001 InfiniBand EDR/Ethernet 841QSFP28 2-Ports 100GbE PCI Express 3.0 x16 Network Adapter for ProLiant Server
SKU: P23842-001
Price: $378.95
HPE 843430-001 InfiniBand EDR 2 x Ports 100Gb/s QSFP28 PCI Express 3.0 X16 840Z Mezzanine FIO Adapter
SKU: 843430-001
Price: $75.79
HPE 872726-B21 InfiniBand EDR 2-Ports 841QSFP28 PCI Express 3.0 x16 Adapter
SKU: 872726-B21
Price: $305.26
HP CX456A InfiniBand EDR/Ethernet 2-Ports 100GbE PCI-Express 3.0 x16 Network Adapter
SKU: CX456A
Price: $334.74
HPE 844383-001 HP 844383-001 Apollo A10 12 x Ports External 100Gb/s + 24 x Ports Internal 100Gb/s Unmanaged Rack Mountable EDR Infiniband Switch
SKU: 844383-001
Price: $236.84
HPE 877690-001 HP 877690-001 Infiniband Edr/Ethernet 841QSFP28 2-Ports 100Gb/s Network Adapter
SKU: 877690-001
Price: $305.26
HPE 825316-001 HP 825316-001 Infiniband EDR/Ethernet 2-Ports 100GbE Network Adapter
SKU: 825316-001
Price: $310.53
HPE 844381-001 HP 844381-001 InfiniBand EDR 2 x Ports 100Gb/s Phi-Express 3.0 X16 840Z Mezzanine FIO Adapter
SKU: 844381-001
Price: $71.58
HPE 877688-001 HP 877688-001 InfiniBand/EDR 841QSFP28 1-Port 100G 100GbE PCI-Express 3.0 x16 Network Adapter
SKU: 877688-001
Price: $170.53
HPE 872725-B21 InfiniBand EDR 1-Port 100Gb/s 100GBase-X PCI-Express 3.0 x16 841QSFP28 Network Adapter
SKU: 872725-B21
Price: $170.53
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.