Alternative to HP-K1603A3: Better-Value Equivalents in Stock
Comparing the HP-K1603A3 (HP-K1603A3 - Hi-Pro 150-Watts ATX Power Supply HP Pavilion) 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 HP-K1603A3
| SKU | HP-K1603A3 |
|---|---|
| Product | HP-K1603A3 - Hi-Pro 150-Watts ATX Power Supply HP Pavilion |
| Current price | $318.32 |
| Stock status | In Stock |
| Detail page | View HP-K1603A3 › |
Alternatives to HP-K1603A3
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.
ATX-300-12Z-REV-DDR - HP 300-Watts ATX Power Supply for Pavilion
SKU: ATX-300-12Z-REV-DDR
Price: $139.22
5187-5009 - HP 300-Watts ATX Power Supply with PFC for Pavilion (merlot C) Regulated Power Supply
SKU: 5187-5009
Price: $178.41
308446-001 - HP 150-Watts 20-240V AC ATX Power Supply with Active Power Factor Correction for EVO D530 UltraSlim Desktop
SKU: 308446-001
Price: $184.21
0950-2776 - HP 150-Watts ATX Power Supply for HP Vectra Special 12 Pin Power Connector
SKU: 0950-2776
Price: $344.33
570857-001 - HP 460-Watts ATX 24-Pin Power Factor Correction Power Supply For HP Envy 700 Pavilion H8
SKU: 570857-001
Price: $189.47
5188-2755 - HP 108-Watts AC 100-127V AC ATX 3A Power Factor Correction Power Supply for Pavilion S7220N S7740LA S7510N Slimline Desktop
SKU: 5188-2755
Price: $357.09
0950-2783 - HP 150-Watts 100-230V ATX Power Supply for Vectra VL 6/266MT Series7
SKU: 0950-2783
Price: $344.33
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.