Replacement for UN939: Drop-In Alternatives We Stock
Looking for a replacement for the UN939 (UN939 - Dell PERC 5/IR Single Channel PCI-Express SAS RAID Controller for PowerEdge / PowerVault Server)? 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 UN939
| SKU | UN939 |
|---|---|
| Product | UN939 - Dell PERC 5/IR Single Channel PCI-Express SAS RAID Controller for PowerEdge / PowerVault Server |
| Current price | $128.21 |
| Stock status | In Stock |
| Detail page | View UN939 › |
Drop-in replacements for UN939
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.
0M8K48 - Dell PERC 6I/R PERC S300 SAS PCI-Express RAID Controller for PowerEdge T410 / R510
SKU: 0M8K48
Price: $85.82
M8K48 - Dell PERC 6I/R PERC S300 SAS PCI-Express RAID Controller for PowerEdge T410 / R510
SKU: M8K48
Price: $85.82
341-3874 - Dell PERC 5/IR Single Channel PCI-Express SAS RAID Controller for PowerEdge 840
SKU: 341-3874
Price: $102.95
0RD996 - Dell PERC 5/IR Single Channel PCI-Express SAS RAID Controller for PowerEdge 840
SKU: 0RD996
Price: $117.89
RD996 - Dell PERC 5/IR Single Channel PCI-Express SAS RAID Controller for PowerEdge 840
SKU: RD996
Price: $117.89
HD279 - Dell PERC 5/IR Single Channel PCI-Express SAS RAID Controller for PowerEdge / PowerVault Server
SKU: HD279
Price: $128.95
0HD279 - Dell PERC 5/IR Single Channel PCI-Express SAS RAID Controller for PowerEdge / PowerVault Server
SKU: 0HD279
Price: $128.95
0UN939 - Dell PERC 5/IR Single Channel PCI-Express SAS RAID Controller for PowerEdge / PowerVault Server
SKU: 0UN939
Price: $128.95
GU186 - Dell PERC 5/IR Single Channel PCI-Express SAS RAID Controller for PowerEdge / PowerVault Server
SKU: GU186
Price: $138.95
0GU186 - Dell PERC 5/IR Single Channel PCI-Express SAS RAID Controller for PowerEdge / PowerVault Server
SKU: 0GU186
Price: $157.07
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.