Replacement for WS-X6548-RJ-21: Drop-In Alternatives We Stock
Looking for a replacement for the WS-X6548-RJ-21 (WS-X6548-RJ-21 - Cisco Catalyst 6500 48-Port 48 x 10/100/1000 Base-T Layer 3 Managed Fabric-Enabled Module)? 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-X6548-RJ-21
| SKU | WS-X6548-RJ-21 |
|---|---|
| Product | WS-X6548-RJ-21 - Cisco Catalyst 6500 48-Port 48 x 10/100/1000 Base-T Layer 3 Managed Fabric-Enabled Module |
| Current price | $362.38 |
| Stock status | In Stock |
| Detail page | View WS-X6548-RJ-21 › |
Drop-in replacements for WS-X6548-RJ-21
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.
WS-X4148-RJ21 - Cisco Catalyst X4148 4500 Series 48 x Ports 10/100Base-TX Fast Ethernet Network Switch Module
SKU: WS-X4148-RJ21
Price: $295.76
10-2148-01 - Cisco 8Gb/s Fiber Channel Short Wave 1490nm SFP+ Transceiver Module
SKU: 10-2148-01
Price: $81.88
10-2180-02 - Cisco 2.5Gb/s OC-48/STM-16 Single-Mode Fiber 80km 1556.55nm LC Connector SFP Transceiver Module
SKU: 10-2180-02
Price: $1,559.91
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.