Replacement for D1721: Drop-In Alternatives We Stock
Looking for a replacement for the D1721 (D1721 - Dell PE6600-6650 Server PRPHL Riser Card)? Pro Disk Network ships Dell 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 D1721
| SKU | D1721 |
|---|---|
| Product | D1721 - Dell PE6600-6650 Server PRPHL Riser Card |
| Current price | $73.68 |
| Stock status | In Stock |
| Detail page | View D1721 › |
Drop-in replacements for D1721
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.
66UDR - Dell System Board (Motherboard) for PowerEdge 6600 / 6650 Rack Server
SKU: 66UDR
Price: $199.30
066UDR - Dell System Board (Motherboard) for PowerEdge 6600 / 6650 Rack Server
SKU: 066UDR
Price: $199.30
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.