Replacement for L4985B: Drop-In Alternatives We Stock
Looking for a replacement for the L4985B (L4985B - STMicroelectronics Power Factor Correction - PFC CCM PFC controller with high voltage startup)? 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 L4985B
| SKU | L4985B |
|---|---|
| Product | L4985B - STMicroelectronics Power Factor Correction - PFC CCM PFC controller with high voltage startup |
| Stock status | In Stock |
| Detail page | View L4985B › |
Drop-in replacements for L4985B
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.
310424-001 - HP 450-Watts ATX Power Supply with Power Factor Correction Power Factor Correction for XW8000 WorkStation
SKU: 310424-001
Price: $155.79
5188-2621 - HP 250-Watts ATX Power Supply with Power Factor Correction Power Factor Correction for Desktop System
SKU: 5188-2621
Price: $236.61
308615-001 - HP 240-Watts AC 120-240V 45-66Hz Redundant Hot-Plug 20-Pin Power Supply with Power Factor Correction (PFC) for EVO D330/530
SKU: 308615-001
Price: $89.47
389322-001 - HP 500-Watts Switching Power Supply with Power Factor Correction PFC ProLiant DL140/ DL145 G2
SKU: 389322-001
Price: $113.68
348114-001 - HP 1300-Watts Redundant Hot-Pluggable AC Power Supply with Power Factor Correction (PFC) for ProLaint DL580 ML570 G3 G4
SKU: 348114-001
Price: $117.89
D2567F3P - HP 250-Watts ATX Ff Power Factor Correction (PFC) Power Supply For Dx5150 Business Pc
SKU: D2567F3P
Price: $143.39
0950-4351 - HP 220-Watts ATX 12V Switching Power Supply with Power Factor Correction (PFC) for EVO D310/D315/D510,Vectra VL430
SKU: 0950-4351
Price: $174.43
DPS-450EB-C - HP 450-Watts AC 100-240V Redundant Hot-Pluggable Power Supply with Active Power Factor Correction (PFC) For XW8000 WorkStation
SKU: DPS-450EB-C
Price: $182.37
DPS-450EB-B - HP 450-Watts AC 100-240V Redundant Hot-Pluggable Power Supply with Active Power Factor Correction (PFC) For XW8000 WorkStation
SKU: DPS-450EB-B
Price: $182.37
DPS-450EB-A - HP 450-Watts AC 100-240V Redundant Hot-Pluggable Power Supply with Active Power Factor Correction (PFC) For XW8000 WorkStation
SKU: DPS-450EB-A
Price: $189.47
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.