Replacement for 201693-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 201693-B21 (201693-B21 - HP 512MB Kit (2 X 256MB) 133MHz PC133 ECC Registered CL3 168-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 201693-B21
| SKU | 201693-B21 |
|---|---|
| Product | 201693-B21 - HP 512MB Kit (2 X 256MB) 133MHz PC133 ECC Registered CL3 168-Pin DIMM Memory |
| Current price | $73.68 |
| Stock status | In Stock |
| Detail page | View 201693-B21 › |
Drop-in replacements for 201693-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.
A1286A - HP 512MB Kit (2 X 256MB) 133MHz PC133 ECC Registered CL3 168-Pin DIMM 3.3V Memory
SKU: A1286A
Price: $204.46
217165-B21 - HP 512MB Kit (2 X 256MB) 133MHz PC133 ECC Registered CL3 168-Pin DIMM 3.3V Memory
SKU: 217165-B21
Price: $564.83
157377-001 - HP 512MB Kit (2 X 256MB) 133MHz PC133 ECC Unbuffered CL3 168-Pin DIMM 3.3V Memory
SKU: 157377-001
Price: $202.91
201692-B21 - HP 256MB Kit (2 X 128MB) 133MHz PC133 ECC Registered CL3 168-Pin DIMM 3.3V Memory
SKU: 201692-B21
Price: $71.58
201692B21B - HP 256MB Kit (2 X 128MB) 133MHz PC133 ECC Registered CL3 168-Pin DIMM Memory
SKU: 201692B21B
Price: $237.84
201691-B21 - HP 256MB Kit (2 X 128MB) 133MHz PC133 ECC Registered CL3 168-Pin DIMM 3.3V Memory
SKU: 201691-B21
Price: $237.84
A6168A - HP 1GB Kit (4 X 256MB) 133MHz PC133 ECC Registered CL3 168-Pin DIMM 3.3V Memory
SKU: A6168A
Price: $1,041.13
3X-MS350-DA - HP 1GB Kit (4 X 256MB) 133MHz PC133 ECC Registered CL3 168-Pin DIMM 3.3V Memory
SKU: 3X-MS350-DA
Price: $1,041.13
201694-B21 - HP 1GB Kit (2 X 512MB) 133MHz PC133 ECC Registered CL3 168-Pin DIMM 3.3V Memory
SKU: 201694-B21
Price: $71.58
A6949A - HP 256MB Kit (2 X 128MB) 133MHz PC133 ECC Unbuffered CL3 168-Pin DIMM 3.3V Memory
SKU: A6949A
Price: $232.36
P1604E - HP 256MB Kit (2 X 128MB) 133MHz PC133 non-ECC Unbuffered CL3 168-Pin DIMM Memory
SKU: P1604E
Price: $279.49
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.