Replacement for 663436-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 663436-B21 (663436-B21 - HP 642 G3 Intelligent 42U Rack)? 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 663436-B21
| SKU | 663436-B21 |
|---|---|
| Product | 663436-B21 - HP 642 G3 Intelligent 42U Rack |
| Current price | $773.68 |
| Stock status | In Stock |
| Detail page | View 663436-B21 › |
Drop-in replacements for 663436-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.
HP J8697AZ ProCurve 5400zl Series 5406zl 6 x Expansion Slots Rack-mountable Layer 3 Managed Intelligent Edge Switch Chassis
SKU: J8697AZ
Price: $170.53
HP J8697-69001 ProCurve 5400zl Series 5406zl 6 x Expansion Slots Rack-mountable Layer 3 Managed Intelligent Edge Switch Chassis
SKU: J8697-69001
Price: $170.53
HP A7426-63001 MDS 9100 Series 9120 20 x Ports 2U Rack-mountable Multilayer Intelligent Fabric Switch
SKU: A7426-63001
Price: $1,033.68
HP A7426-64001 MDS 9100 Series 9120 20 x Ports 2U Rack-mountable Multilayer Intelligent Fabric Switch
SKU: A7426-64001
Price: $1,033.68
012795-001 - HP 128MB DDR Battery Backed Write Cache Enabler Memory for Smart Array 641/642 Controller
SKU: 012795-001
Price: $71.58
413486-001 - HP 128MB DDR BBWC Enabler Memory for Smart Array 641/642 Controllers
SKU: 413486-001
Price: $71.58
356272-001 - HP 128MB Battery Backed Write Cache for Smart Array 641/642/6I/E200
SKU: 356272-001
Price: $71.58
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.