Replacement for 184420-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 184420-B21 (184420-B21 - HP 2GB Kit (2 X 1GB) DDR-200MHz PC1600 ECC Registered CL2 184-Pin DIMM 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 184420-B21
| SKU | 184420-B21 |
|---|---|
| Product | 184420-B21 - HP 2GB Kit (2 X 1GB) DDR-200MHz PC1600 ECC Registered CL2 184-Pin DIMM Memory |
| Current price | $295.49 |
| Stock status | In Stock |
| Detail page | View 184420-B21 › |
Drop-in replacements for 184420-B21
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.
338391-B21 - HP 2GB Kit (2 X 1GB) DDR-200MHz PC1600 ECC Registered CL2 184-Pin DIMM 2.5V Memory
SKU: 338391-B21
Price: $295.49
187420-B21 - HP 2GB Kit (2 X 1GB) DDR-200MHz PC1600 ECC Registered CL2 184-Pin DIMM 2.5V Memory
SKU: 187420-B21
Price: $295.49
202171-B21 - HP 2GB Kit (4 X 512MB) DDR-200MHz PC1600 ECC Registered CL2 184-Pin DIMM 2.5V Memory
SKU: 202171-B21
Price: $71.58
187421-B21 - HP 4GB Kit (2 X 2GB) DDR-200MHz PC1600 ECC Registered CL2 184-Pin DIMM 2.5V Memory
SKU: 187421-B21
Price: $160.00
184421-B21 - HP 4GB Kit (2 X 2GB) DDR-200MHz PC1600 ECC Registered CL2 184-Pin DIMM Memory for ProLiant DL580 / ML570 G2 Server
SKU: 184421-B21
Price: $185.32
187421-B22 - HP 4GB Kit (2 X 2GB) DDR-200MHz PC1600 ECC Registered CL2 184-Pin DIMM Memory for ProLiant DL580 / ML570 G2 Server
SKU: 187421-B22
Price: $185.32
202173-B21 - HP 8GB Kit (4 X 2GB) DDR-200MHz PC1600 ECC Registered CL2 184-Pin DIMM 2.5V Memory
SKU: 202173-B21
Price: $240.00
241476-B21 - HP 8GB Kit (4 X 2GB) DDR-200MHz PC1600 ECC Registered CL2 184-Pin DIMM 2.5V Memory
SKU: 241476-B21
Price: $360.88
187421-32G - HP 32GB Kit (16 X 2GB) DDR-200MHz PC1600 ECC Registered CL2 184-Pin DIMM Memory for ProLiant DL580 / ML570 G2 Server
SKU: 187421-32G
Price: $1,472.78
202170-B21 - HP 1GB Kit (4 X 256MB) DDR-200MHz PC1600 ECC Registered CL2 184-Pin DIMM 2.5V Memory
SKU: 202170-B21
Price: $71.58
202172-B21 - HP 4GB Kit (4 X 1GB) DDR-200MHz PC1600 ECC Registered CL2 184-Pin DIMM 2.5V Memory
SKU: 202172-B21
Price: $128.42
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.