Replacement for A3T21AV: Drop-In Alternatives We Stock
Looking for a replacement for the A3T21AV (A3T21AV - HP 128GB Kit (8x16GB) PC3-12800 DDR3-1600MHz ECC Registered CL11 RDIMM Dual-Rank 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 A3T21AV
| SKU | A3T21AV |
|---|---|
| Product | A3T21AV - HP 128GB Kit (8x16GB) PC3-12800 DDR3-1600MHz ECC Registered CL11 RDIMM Dual-Rank Memory |
| Current price | $812.99 |
| Stock status | In Stock |
| Detail page | View A3T21AV › |
Drop-in replacements for A3T21AV
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.
A3T20AV - HP 128GB Kit (8x16GB) PC3-12800 DDR3-1600MHz ECC Registered CL11 RDIMM Dual-Rank Memory
SKU: A3T20AV
Price: $812.99
D3G53AV - HP 128GB Kit (8x16GB) PC3-12800 DDR3-1600MHz ECC Registered CL11 RDIMM Dual-Rank Memory
SKU: D3G53AV
Price: $812.99
D3D05AV - HP 128GB Kit (8x16GB) PC3-12800 DDR3-1600MHz ECC Registered CL11 RDIMM Dual-Rank Memory
SKU: D3D05AV
Price: $812.99
D3D06AV - HP 128GB Kit (8x16GB) PC3-12800 DDR3-1600MHz ECC Registered CL11 RDIMM Dual-Rank Memory
SKU: D3D06AV
Price: $812.99
QG282AV - HP 128GB Kit (8x16GB) PC3-12800 DDR3-1600MHz ECC Registered CL11 RDIMM Dual-Rank Memory
SKU: QG282AV
Price: $812.99
QG273AV - HP 128GB Kit (8x16GB) PC3-12800 DDR3-1600MHz ECC Registered CL11 RDIMM Dual-Rank Memory
SKU: QG273AV
Price: $812.99
HP D3D06AV#ABA 128GB Kit (8 X 16GB) PC3-12800 DDR3-1600MHz ECC Registered CL11 RDIMM Dual-Rank Memory
SKU: D3D06AV-ABA
Price: $812.99
QG283AV - HP 128GB Kit (16x8GB) PC3-12800 DDR3-1600MHz ECC Registered CL11 RDIMM Dual-Rank Memory
SKU: QG283AV
Price: $1,643.05
A3T19AV - HP 128GB Kit (16x8GB) PC3-12800 DDR3-1600MHz ECC Registered CL11 RDIMM Dual-Rank Memory
SKU: A3T19AV
Price: $1,643.05
713985-128 - HP 128GB Kit (8 X 16GB) DDR3-1600MHz PC3-12800 ECC Registered CL11 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory
SKU: 713985-128
Price: $143.39
QG274AV - HP 128GB Kit (4 X 32GB) PC3-12800 DDR3-1600MHz ECC Registered CL11 LRDIMM Quad-Rank Memory
SKU: QG274AV
Price: $690.43
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.