Replacement for A3864A: Drop-In Alternatives We Stock
Looking for a replacement for the A3864A (A3864A - HP 1GB PC133 133MHz ECC Registered High Density 278-Pin DIMM Memory Module)? 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 A3864A
| SKU | A3864A |
|---|---|
| Product | A3864A - HP 1GB PC133 133MHz ECC Registered High Density 278-Pin DIMM Memory Module |
| Current price | $226.08 |
| Stock status | In Stock |
| Detail page | View A3864A › |
Drop-in replacements for A3864A
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.
A8088BR - HP 2GB Kit (2 X 1GB) 133MHz PC133 ECC Registered High Density 278-Pin DIMM Memory
SKU: A8088BR
Price: $83.88
A5798A - HP 1GB Kit (2x512MB) PC133 133MHz ECC Registered High-Density 278-Pin System Specific DIMM Memory for 9000 A / L Class Servers
SKU: A5798A
Price: $97.14
A6802A - HP 1GB Kit (4x256MB) PC133 133MHz ECC Registered High-Density 278-Pin SyncDRAM DIMM Memory for rp8420/rp7410/rx7620 Server
SKU: A6802A
Price: $127.16
A6098-67001 - HP 1GB PC133 133MHz ECC Registered High-Density 278-Pin SyncDRAM DIMM Memory Module for rp8420/rp7410/rx7620 Server
SKU: A6098-67001
Price: $157.07
A6098-69001 - HP 1GB PC133 133MHz ECC Registered High-Density 278-Pin SyncDRAM DIMM Memory Module for rp8420/rp7410/rx7620 Server
SKU: A6098-69001
Price: $157.07
AB308-60001 - HP 1GB PC133 133MHz ECC Registered High-Density 278-Pin SyncDRAM DIMM Memory Module for rp8420/rp7410/rx7620 Server
SKU: AB308-60001
Price: $180.91
AB308-69001 - HP 1GB PC133 133MHz ECC Registered High-Density 278-Pin SyncDRAM DIMM Memory Module for rp8420/rp7410/rx7620 Server
SKU: AB308-69001
Price: $180.91
A6115-69002 - HP 1GB PC133 133MHz ECC Registered High-Density 278-Pin System Specific DIMM Memory Module for HP9000 A/L Class Server
SKU: A6115-69002
Price: $211.00
A6115-60002 - HP 1GB PC133 133MHz ECC Registered High-Density 278-Pin System Specific DIMM Memory Module for HP9000 A/L Class Server
SKU: A6115-60002
Price: $211.00
TS1GHP5798 - Transcend 1GB Kit (2 X 512MB) 133MHz PC133 ECC Registered High-Density 278-Pin System Specific DIMM Memory
SKU: TS1GHP5798
Price: $218.84
A3864A3P - HP 1GB 133MHz PC133 ECC Registered High Density 278-Pin DIMM Memory Module
SKU: A3864A3P
Price: $226.08
A3864-69001 - HP 1GB PC133 133MHz ECC Registered High Density 278-Pin DIMM Memory Module
SKU: A3864-69001
Price: $226.08
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.