Replacement for AB494A: Drop-In Alternatives We Stock
Looking for a replacement for the AB494A (AB494A - HP 4GB Kit (2 X 2GB) DDR2-533MHz PC2-4200 ECC Unbuffered CL4 240-Pin DIMM 1.8V Memory)? 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 AB494A
| SKU | AB494A |
|---|---|
| Product | AB494A - HP 4GB Kit (2 X 2GB) DDR2-533MHz PC2-4200 ECC Unbuffered CL4 240-Pin DIMM 1.8V Memory |
| Current price | $291.87 |
| Stock status | In Stock |
| Detail page | View AB494A › |
Drop-in replacements for AB494A
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.
AB454A - HP 4GB Kit (2 X 2GB) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM 1.8V Memory
SKU: ab454a
Price: $71.58
AD344A - HP 4GB Kit (2 X 2GB) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM 1.8V Dual Rank Memory
SKU: AD344A
Price: $128.42
AD275A - HP 4GB Kit (2 X 2GB) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM 1.8V Dual Rank Memory
SKU: AD275A
Price: $128.42
AB454AR - HP 4GB Kit (2 X 2GB) DDR2-533MHz PC2-4200 ECC Registered High-Density CL4 278-Pin DIMM Memory
SKU: AB454AR
Price: $227.88
AD329A - HP 4GB Kit (2 X 2GB) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM 1.8V Memory
SKU: AD329A
Price: $310.11
AD344AB - HP 4GB Kit (2 X 2GB) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM Dual Rank Memory
SKU: AD344AB
Price: $310.11
AD344AR - HP 4GB Kit (2 X 2GB) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM Dual Rank Memory
SKU: AD344AR
Price: $310.11
390824-2DM - HP 2GB Kit (4 X 512MB) DDR2-533MHz PC2-4200 ECC Unbuffered CL4 240-Pin DIMM 1.8V Memory
SKU: 390824-2DM
Price: $456.08
AB564A - HP 4GB Kit (4 X 1GB) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM 1.8V Memory
SKU: AB564A
Price: $128.42
AB455A - HP 8GB Kit (2 X 4GB) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM 1.8V Dual Rank Memory
SKU: AB455A
Price: $147.37
397313-B21 - HP 8GB Kit (2 X 4GB) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM 1.8V Memory
SKU: 397313-B21
Price: $273.62
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.