Replacement for 1CA78AT: Drop-In Alternatives We Stock
Looking for a replacement for the 1CA78AT (1CA78AT - HP 4GB DDR4-2400MHz PC4-19200 non-ECC Unbuffered CL17 288-Pin DIMM 1.2V Single Rank 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 1CA78AT
| SKU | 1CA78AT |
|---|---|
| Product | 1CA78AT - HP 4GB DDR4-2400MHz PC4-19200 non-ECC Unbuffered CL17 288-Pin DIMM 1.2V Single Rank Memory Module |
| Current price | $140.87 |
| Stock status | In Stock |
| Detail page | View 1CA78AT › |
Drop-in replacements for 1CA78AT
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.
HP24D4U7S1MBP-4 - Kingston 4GB DDR4-2400MHz PC4-19200 non-ECC Unbuffered CL17 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: HP24D4U7S1MBP-4
Price: $81.37
855845-371 - HP 4GB DDR4-2400MHz PC4-19200 non-ECC Unbuffered CL17 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 855845-371
Price: $134.47
860398-800 - HP 4GB DDR4-2400MHz PC4-19200 non-ECC Unbuffered CL17 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 860398-800
Price: $134.47
934799-001 - HP 4GB DDR4-2400MHz PC4-19200 non-ECC Unbuffered CL17 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 934799-001
Price: $134.47
922093-001 - HP 4GB DDR4-2400MHz PC4-19200 non-ECC Unbuffered CL17 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 922093-001
Price: $134.47
Z9H59AA - HP 4GB DDR4-2400MHz PC4-19200 non-ECC Unbuffered CL17 288-Pin DIMM Single Rank 1.2V Memory Module
SKU: Z9H59AA
Price: $140.87
HP Z9H59AA#ABU 4GB DDR4-2400MHz PC4-19200 non-ECC Unbuffered CL17 288-Pin DIMM Single Rank 1.2V Memory Module
SKU: Z9H59AA-ABU
Price: $140.87
855845-671 - HP 4GB DDR4-2400MHz PC4-19200 non-ECC Unbuffered CL17 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 855845-671
Price: $147.28
855845-971 - HP 4GB DDR4-2400MHz PC4-19200 non-ECC Unbuffered CL17 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 855845-971
Price: $160.00
900313-591 - HP 4GB DDR4-2400MHz PC4-19200 non-ECC Unbuffered CL17 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 900313-591
Price: $176.84
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.