Replacement for WS-P4603-2PSU: Drop-In Alternatives We Stock
Looking for a replacement for the WS-P4603-2PSU (WS-P4603-2PSU - Cisco Catalyst 4000 Auxiliary Power Shelf For Catalyst 4006 Switch)? Pro Disk Network ships Cisco 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 WS-P4603-2PSU
| SKU | WS-P4603-2PSU |
|---|---|
| Product | WS-P4603-2PSU - Cisco Catalyst 4000 Auxiliary Power Shelf For Catalyst 4006 Switch |
| Current price | $619.67 |
| Stock status | In Stock |
| Detail page | View WS-P4603-2PSU › |
Drop-in replacements for WS-P4603-2PSU
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.
15454E-BLANK-FMEC - Cisco Shelf FMEC Slot-Filler panel Fits ETSI Shelf Assembly for ONS 15454 SDH Shelf
SKU: 15454E-BLANK-FMEC
Price: $112.88
MEM-C4K-FLD128M - Cisco 128MB Catalyst 4006 Supervisor Eng III Flash Disk
SKU: MEM-C4K-FLD128M
Price: $196.00
IE-4000-8S4G-E - Cisco Industrial Ethernet 4000 RJ-45 8 x Ports 1000Base-X + 4 x SFP Layer 3 Managed Gigabit Ethernet Switch
SKU: IE-4000-8S4G-E
Price: $803.79
IE-4000-8GT8GP4G-E - Cisco 4000 PoE RJ-45 12 X + + Ports 1000Base-X + 4 x SFP Layer 3 Managed Gigabit Ethernet Switch
SKU: IE-4000-8GT8GP4G-E
Price: $2,601.74
IE-4000-4GS8GP4G-E - Cisco 4000 PoE RJ-45 12 X + + Ports 1000Base-X + 4 x SFP Layer 3 Managed Gigabit Ethernet Switch
SKU: IE-4000-4GS8GP4G-E
Price: $6,126.25
CISCO2811 - Cisco 2811 9-Port 9 x 10/100Base-TX Auxiliary Console 120/230V AC Ethernet Integrated Services Router
SKU: CISCO2811
Price: $273.11
MEM-4000-16F - Cisco 16MB Kit (2 X 8MB) Flash Memory for Cisco 4000 Series
SKU: MEM-4000-16F
Price: $290.33
34-0873-01 - Cisco 400-Watts Power Supply for 4003 / 4006 / 4008 Series
SKU: 34-0873-01
Price: $143.39
WS-G5484-RF - Cisco 1 x 1000Base-SX GBIC Interface Converter for Catalyst 4000 Series Switch
SKU: WS-G5484-RF
Price: $213.92
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.