Replacement for 1821-4302: Drop-In Alternatives We Stock
Looking for a replacement for the 1821-4302 (1821-4302 - HP 266MHz 66MHz 16KB L1 Cache Socket TCP320 Intel Pentium MMX 1-Core Processor)? 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 1821-4302
| SKU | 1821-4302 |
|---|---|
| Product | 1821-4302 - HP 266MHz 66MHz 16KB L1 Cache Socket TCP320 Intel Pentium MMX 1-Core Processor |
| Current price | $78.99 |
| Stock status | In Stock |
| Detail page | View 1821-4302 › |
Drop-in replacements for 1821-4302
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.
1821-4304 - HP 266MHz 66MHz FSB 512KB L2 Cache Intel Pentium II 1-Core Processor
SKU: 1821-4304
Price: $82.42
1821-2244 - HP 166MHz 66MHz FSB 512KB L2 Cache Socket CPGA Intel Pentium Pro Processor
SKU: 1821-2244
Price: $82.42
1821-3451 - HP 166MHz 66MHz FSB 512KB L2 Cache Socket CPGA Intel Pentium Pro 1-Core Processor
SKU: 1821-3451
Price: $82.42
1821-4834 - HP 366MHz 66MHz FSB 256KB L2 Cache Intel Pentium II 1-Core Processor
SKU: 1821-4834
Price: $86.38
1821-5317 - HP 400MHz 66MHz FSB 256KB L2 Cache Intel Pentium II 1-Core Processor
SKU: 1821-5317
Price: $116.95
1821-3452 - HP 200MHz 66MHz FSB 256KB L2 Cache Intel Pentium Pro Processor
SKU: 1821-3452
Price: $194.37
1821-5143 - HP 550MHz 100MHz FSB 1MB L2 Cache Socket SECC330 Intel Pentium III Xeon 1-Core Processor
SKU: 1821-5143
Price: $86.38
1821-5413 - HP 450MHz 100MHz FSB 512KB L2 Cache Socket SECC2242 / SECC2576 / SECC576 Intel Pentium III 1-Core Processor
SKU: 1821-5413
Price: $86.38
1821-8571 - HP 850MHz 100MHz FSB 256KB L2 Cache Socket PPGA370 / SECC2495 Intel Pentium III 1-Core Processor
SKU: 1821-8571
Price: $86.38
1821-5687 - HP 650MHz 100MHz FSB 256KB L2 Cache Socket PPGA370 / SECC2495 Intel Pentium III 1-Core Processor
SKU: 1821-5687
Price: $109.21
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.