Replacement for X4303A: Drop-In Alternatives We Stock
Looking for a replacement for the X4303A (X4303A - Sun 1300-Watts 48VDC AC Input Power Supply For Sun Fire 3800)? Pro Disk Network ships drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the X4303A
| SKU | X4303A |
|---|---|
| Product | X4303A - Sun 1300-Watts 48VDC AC Input Power Supply For Sun Fire 3800 |
| Current price | $4,040.84 |
| Stock status | In Stock |
| Detail page | View X4303A › |
Drop-in replacements for X4303A
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.
300-1441-06 - Sun 1300-Watts 48VDC AC Input Power Supply For Sun Fire 3800
SKU: 300-1441-06
Price: $292.63
X5075A-Z - Sun 4 x AC Input Power Cords 16A (International) 4m 180-2004 for Sun Rack 900 Sun Fire V20z Sun Fire V60X RoHS Y
SKU: X5075A-Z
Price: $115.79
120-G2-1300-XR - EVGA SuperNOVA 1300 G2 1300-Watts Fully Modular NVIDIA SLI and Crossfire 80+ Power Supply (Gold)
SKU: 120-G2-1300-XR
Price: $565.32
300-1568-01 - Sun 400-Watts AC Input Power Supply Type A178 for Sun Fire V240
SKU: 300-1568-01
Price: $143.39
300-1568 - Sun 400-Watts AC Input Power Supply Type A178 for Sun Fire V240
SKU: 300-1568
Price: $163.16
300-1945-02 - Sun 500-Watts Redundant AC-Input Single Power Supply for Sun Fire V215/V245/V445/T1000/T2000 & NETRA T2000
SKU: 300-1945-02
Price: $182.37
300-1945-03 - Sun 500-Watts Redundant AC-Input Single Power Supply for Sun Fire V215/V245/V445/T1000/T2000 & NETRA T2000
SKU: 300-1945-03
Price: $182.37
HCP-1300 - Antec High Current Pro Platinum 1300-Watts 80-Plus TX 12V v2.32 & EPS 12V v2.92 Power Supply
SKU: HCP-1300
Price: $530.99
220-PP-1300-X1 - EVGA SuperNOVA 1300P+ 1300-Watts ATX 12V 80 Plus Platinum Fully Modular Power Supply
SKU: 220-PP-1300-X1
Price: $571.83
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.