Replacement for 865398-850: Drop-In Alternatives We Stock
Looking for a replacement for the 865398-850 (865398-850 - HP 16GB PC4-21300 DDR4-2666MHz CL19 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 865398-850
| SKU | 865398-850 |
|---|---|
| Product | 865398-850 - HP 16GB PC4-21300 DDR4-2666MHz CL19 DIMM Memory Module |
| Current price | $273.50 |
| Stock status | In Stock |
| Detail page | View 865398-850 › |
Drop-in replacements for 865398-850
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.
L09285-850 - HP 16GB PC4-21300 DDR4-2666MHz ECC Registered CL19 RDIMM 1.2V Single-Rank Memory Module
SKU: L09285-850
Price: $231.26
937438-850 - HP 16GB PC4-21300 DDR4-2666MHz non-ECC Unbuffered CL19 SoDIMM 1.2V Dual-Rank Memory Module
SKU: 937438-850
Price: $235.00
L09287-850 - HP 64GB DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin Load Reduced DIMM 1.2V Quad Rank Memory Module
SKU: L09287-850
Price: $709.63
L10598-850 - HP 4GB PC4-21300 DDR4-2666MHz non-ECC Unbuffered CL19 SoDIMM 1.2V Single-Rank Memory Module
SKU: L10598-850
Price: $153.67
L09284-850 - HP 8GB PC4-21300 DDR4-2666MHz ECC Registered CL19 RDIMM 1.2V Single-Rank Memory Module
SKU: L09284-850
Price: $205.36
937236-850 - HP 8GB PC4-21300 DDR4-2666MHz non-ECC Unbuffered CL19 SoDIMM 1.2V Single-Rank Memory Module
SKU: 937236-850
Price: $231.71
L09286-850 - HP 32GB PC4-21300 DDR4-2666MHz ECC Registered CL19 RDIMM 1.2V Dual-Rank Memory Module
SKU: L09286-850
Price: $299.33
881067-B21 - HP 16GB DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 881067-B21
Price: $184.21
933278-001 - HP 16GB DDR4-2666MHz PC4-21300 CL19 288-Pin DIMM Memory Module
SKU: 933278-001
Price: $187.37
872970-001 - HP 16GB DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 872970-001
Price: $194.74
847825-B21 - HP 16GB DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Dual Rank Memory Module
SKU: 847825-B21
Price: $196.91
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.