Alternative to P21112-B21: Better-Value Equivalents in Stock
Comparing the P21112-B21 (HPE P21112-B21 E810-CQDA2 2 x QSFP28 Ports 100GBase-X PCIe Gen 4 x 16 Gigabit Ethernet Adapter) 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 P21112-B21
| SKU | P21112-B21 |
|---|---|
| Product | HPE P21112-B21 E810-CQDA2 2 x QSFP28 Ports 100GBase-X PCIe Gen 4 x 16 Gigabit Ethernet Adapter |
| Current price | $987.37 |
| Stock status | In Stock |
| Detail page | View P21112-B21 › |
Alternatives to P21112-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 JG923-61101 HP JG923-61101 OfficeConnect 1920-16G 16 x Ports 10/100/1000Base-T + 4 x Gigabit SFP Ports Layer 3 Managed Gigabit Ethernet Network Switch
SKU: JG923-61101
Price: $183.42
HPE JG933A#ABA HP JG933A#ABA FlexNetwork 5130-24G-SFP-4SFP+ EI 16 x Ports 8 x Dual Personality Ports SFP/RJ-45 + 4 x SFP+ Ports Layer 3 Managed Rack-mountable Gigabit Ethernet Network Switch
SKU: JG933A#ABA
Price: $415.79
HPE P08355-001 InfiniBand HDR100/Ethernet 2-Ports 100GbEPCI-Express 3.0 x16 Low-Profile Gigabit Ethernet Network Adapter
SKU: P08355-001
Price: $549.47
HPE JL169AR HP JL169AR OfficeConnect 1850 Series 1850 6XGT and 2XGT/SPF+ 6 x RJ-45 1/10GBASE-T Ports + 2 x Dual-Personality SFP+ 1/10GBase-T Ports Layer 2 Managed 1U Rack-mountable Gigabit Ethernet Ne
SKU: JL169AR
Price: $1,021.05
HPE JL702A#ABA Aruba Cx 8360v2 8360-16Y2C 16x SFP28 Ports 25GBase-X 2x QSFP28 Ports Layer3 Managed Gigabit Ethernet Switch
SKU: JL702A#ABA
Price: $8,447.37
HPE JL702C Aruba Cx 8360v2 8360-16Y2C 16x SFP28 Ports 25GBase-X 2x QSFP28 Ports Layer3 Managed Gigabit Ethernet Switch
SKU: JL702C
Price: $35,636.84
HP JG923A#ABB OfficeConnect 1920-16G 16-Ports 10/100/1000Base-T with 4 Gigabit SFP Ports Layer-3 Managed Gigabit Ethernet Switch
SKU: JG923A-ABB
Price: $291.79
HP 447116-001 BladeSystem c-Class 16 x Ports 10/100/1000Base-T + 4 X 10 Gigabit XFP Ports Managed Gigabit Ethernet Network Switch
SKU: 447116-001
Price: $334.74
HPE R8R47-61001 Aruba Instant On 1430-16G 16-Ports 10/100/1000Base-T Layer 2 UnManageable 1U Rack-mountable Gigabit Ethernet Network Switch
SKU: R8R47-61001
Price: $271.58
HPE R8R48-61001 Aruba Instant On 1430-16G-Class4-PoE 16-Ports 10/100/1000Base-T Class4 PoE Layer 2 Unmanaged 1U Rack-mountable Gigabit Ethernet Network Switch
SKU: R8R48-61001
Price: $347.37
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.