Alternative to A3863A: Better-Value Equivalents in Stock
Comparing the A3863A (A3863A - HP 512MB PC100 100MHz ECC Registered High-Density CL2 278-Pin DIMM Memory Module for L-Class 9000 Server) against alternatives? Pro Disk Network stocks 12 similar HP parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the A3863A
| SKU | A3863A |
|---|---|
| Product | A3863A - HP 512MB PC100 100MHz ECC Registered High-Density CL2 278-Pin DIMM Memory Module for L-Class 9000 Server |
| Current price | $259.50 |
| Stock status | In Stock |
| Detail page | View A3863A › |
Alternatives to A3863A
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.
A5841-60001 - HP 512MB PC100 100MHz ECC Registered 278-Pin High Density DIMM Memory Module
SKU: A5841-60001
Price: $165.79
A5841-69001 - HP 512MB PC100 100MHz ECC Registered 278-Pin High Density DIMM Memory Module
SKU: A5841-69001
Price: $165.79
A3863-69001 - HP 512MB PC100 100MHz ECC Registered High-Density CL2 278-Pin DIMM Memory Module for L-Class 9000 Server
SKU: A3863-69001
Price: $259.50
A3863-66501 - HP 512MB PC100 100MHz ECC Registered High-Density CL2 278-Pin DIMM Memory Module for L-Class 9000 Server
SKU: A3863-66501
Price: $292.04
A5864A - HP 2GB Kit (2x1GB) PC100 100MHz ECC Registered High Density CL2 278-Pin DIMM Memory for 9000 and N-Class Servers
SKU: A5864A
Price: $186.75
A5841A - HP 1GB Kit (2x512MB) PC100 100MHz ECC Registered 278-Pin High Density DIMM Memory
SKU: A5841A
Price: $242.41
A5797A - HP 512MB Kit (2x256MB) PC133 133MHz ECC Registered High-Density CL2 278-Pin DIMM Memory for L-Class 9000 Server
SKU: A5797A
Price: $96.84
A4923-60001 - HP 512MB PC120 120MHz ECC Registered High-Density 278-Pin DIMM Memory Module for 9000 and N-Class Servers
SKU: A4923-60001
Price: $113.68
A5798-60001 - HP 512MB PC133 133MHz ECC Registered High-Density 278-Pin System Specific DIMM Memory Module for 9000 A / L Class Servers
SKU: A5798-60001
Price: $113.68
A5798-60002 - HP 512MB PC133 133MHz ECC Registered High-Density 278-Pin System Specific DIMM Memory Module for 9000 A / L Class Servers
SKU: A5798-60002
Price: $113.68
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.