Alternative to 505958-B21: Better-Value Equivalents in Stock
Comparing the 505958-B21 (505958-B21 - HP BLC Qlogic Infiniband 32-Port 4x QDR Switch) 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 505958-B21
| SKU | 505958-B21 |
|---|---|
| Product | 505958-B21 - HP BLC Qlogic Infiniband 32-Port 4x QDR Switch |
| Current price | $1,044.21 |
| Stock status | In Stock |
| Detail page | View 505958-B21 › |
Alternatives to 505958-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.
583210-B21 - HP QLogic 4X QDR Infiniband Dual-Port PCI-Express 2.0 X8 Mezzanine HCA for C-Class Blade System
SKU: 583210-B21
Price: $96.84
590203-B21 - HP Voltaire Infiniband Qdr 324-Port Switch 18-Port Line Module
SKU: 590203-B21
Price: $218.95
592279-001 - HP Voltaire Infiniband Qdr 324-Port Switch 18-Port Line Module
SKU: 592279-001
Price: $218.95
590510-B25 - HP Infiniband Cable 5m 16.4 Ft for Voltaire Ib 4x Qdr 324-Port Director Switch
SKU: 590510-B25
Price: $261.34
674278-B21 - HP Mellanox InfiniBand (IB) QDR FDR 324-Port Switch Chassis
SKU: 674278-B21
Price: $1,697.68
519132-001 - HP Infiniband 4x QDR PCI-Express G2 2-Port Host Channel Adapter
SKU: 519132-001
Price: $205.26
577102-001 - HP Mellanox MTS610 324-Port InfiniBand Quad Data Rate (QDR) Fabric Board
SKU: 577102-001
Price: $7,015.79
HP 632220-B21 Voltaire InfiniBand 34x Ports QDR 2x Ports 10GbE Network Switch
SKU: 632220-B21
Price: $2,633.68
498386-B25 - HP 4X DDR/QDR InfiniBand Optical Cable Fiber Optic 32.81 ft QSFP
SKU: 498386-B25
Price: $1,096.38
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.