Alternative to 721551-001: Better-Value Equivalents in Stock
Comparing the 721551-001 (721551-001 - HP 3T SSD G2 IO Accelerator) 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 721551-001
| SKU | 721551-001 |
|---|---|
| Product | 721551-001 - HP 3T SSD G2 IO Accelerator |
| Current price | $5,534.74 |
| Stock status | In Stock |
| Detail page | View 721551-001 › |
Alternatives to 721551-001
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.
639188-001 - HP 320GB SSD PCI-Express x4 Mezzanine I/O Accelerator Card for BladeSystem C-Class Server
SKU: 639188-001
Price: $197.89
627196-001 - HP 640GB SSD PCI-Express x4 Mezzanine I/O Accelerator Card
SKU: 627196-001
Price: $496.84
507152-001 - HP 320GB Internal SSD PCI-Express x4 Mezzanine I/O Accelerator Card for HP BladeSystem c-Class Server
SKU: 507152-001
Price: $579.26
AJ878A - HP 320GB Internal SSD PCI-Express x4 Mezzanine I/O Accelerator Card for HP BladeSystem c-Class Server
SKU: AJ878A
Price: $397.89
AJ877A - HP 160GB Internal SSD PCI-Express x4 Mezzanine IO Accelerator Card for HP c-Class BladeSystem
SKU: AJ877A
Price: $969.24
AJ878B - HP 320GB Internal SSD PCI-E x4 Mezzanine I/O Accelerator Card for HP BladeSystem C Class Server
SKU: AJ878B
Price: $1,023.16
QK763A - HP 1.2TB SSD MLC PCI-Express x4 I/O Accelerator for ProLiant Blade System
SKU: QK763A
Price: $4,787.37
125425-001 - HP / Compaq Cache Accelerator Board for ProLiant 8000 / 8500
SKU: 125425-001
Price: $155.79
143887-001 - HP / Compaq Cache Accelerator Board for ProLiant 8000 / 8500
SKU: 143887-001
Price: $157.07
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.