Replacement for K2R81A: Drop-In Alternatives We Stock
Looking for a replacement for the K2R81A (K2R81A - HP Modular Smart Array 2040 SFF Chassis - Storage Enclosure)? Pro Disk Network ships HP 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 K2R81A
| SKU | K2R81A |
|---|---|
| Product | K2R81A - HP Modular Smart Array 2040 SFF Chassis - Storage Enclosure |
| Current price | $818.95 |
| Stock status | In Stock |
| Detail page | View K2R81A › |
Drop-in replacements for K2R81A
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.
C8R18A - HP Modular Smart Array 2040 LFF Disk Enclosure Storage Enclosure 12-Bay
SKU: C8R18A
Price: $1,850.53
AP846B - HP Modular Smart Array P2000 G3 Fc Dual Controller Sff Modular Smart Array System Hard Drive Array 24-Bay 0
SKU: AP846B
Price: $1,450.53
C8R15A - HP Modular Smart Array 2040 San Dual Controller SFF Storage Hard Drive Array 24-Bay
SKU: C8R15A
Price: $1,433.68
C8S55A - HP Modular Smart Array 2040 SAS Dual Controller SFF Storage Hard Drive Array 24-Bay
SKU: C8S55A
Price: $1,840.00
C8R15SB - HP Modular Smart Array 2040 San Dual Controller SFF Storage Hard Drive Array 24-Bay
SKU: C8R15SB
Price: $2,412.63
K2R84A - HP Modular Smart Array 2040 SAS Dual Controller SFF Storage Hard Drive Array 24 Bays ( SAS-2 ) SAS 12GB/s (External) Rackmountable 2u
SKU: K2R84A
Price: $2,503.16
K2R80A - HP Modular Smart Array 2040 San Dual Controller LFF Storage - Hard Drive Array
SKU: K2R80A
Price: $2,250.53
K2R79A - HP Modular Smart Array 2040 San Dual Controller LFF Storage - Hard Drive Array
SKU: K2R79A
Price: $3,968.42
C8S54A - HP Modular Smart Array 2040 SAS Dual Controller LFF Storage Hard Drive Array 12-Bay
SKU: C8S54A
Price: $4,115.79
C8R14SB - HP Modular Smart Array 2040 San Dual Controller LFF Storage Hard Drive Array 12-Bay
SKU: C8R14SB
Price: $14,153.09
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.