Replacement for 451438R-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 451438R-B21 (451438R-B21 - Catalyst 3120G Switch for HP c-Class Blade System 2 x X2 4 x 10/100/1000Base-T LAN)? 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 451438R-B21
| SKU | 451438R-B21 |
|---|---|
| Product | 451438R-B21 - Catalyst 3120G Switch for HP c-Class Blade System 2 x X2 4 x 10/100/1000Base-T LAN |
| Current price | $189.47 |
| Stock status | In Stock |
| Detail page | View 451438R-B21 › |
Drop-in replacements for 451438R-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.
379064-001 - HP 10/100Base-Tx/1000Base-T RJ-45 SFP Transceiver Module for Catalyst 3120G Blade Switch
SKU: 379064-001
Price: $160.00
640807-001 - HP 510-Watts Power Supply Node Sx00 for S-Class / T-Class Storage System
SKU: 640807-001
Price: $184.21
410916-B21 - HP/Cisco Catalyst 3020 8 x Ports 10/100/1000Base-T + 4 x SFP Layer-3 Managed Gigabit Ethernet Blade Switch
SKU: 410916-B21
Price: $145.26
432904-001 - HP/Cisco Catalyst 3020 16-Ports 8 x 10/100/1000Base-T Gigabit LAN + 4 x SFP Layer-3 Managed Blade Switch Module
SKU: 432904-001
Price: $145.26
451439R-B21 - HP/Cisco Catalyst 3120X 4 x Ports 10/100/1000Base-T + 2 x SFP Gigabit Ethernet Blade Switch Module
SKU: 451439R-B21
Price: $189.47
410916R-B21 - HP/Cisco Catalyst 3020 8 x Ports 10/100/1000Base-T + 4 x SFP Layer-3 Managed Gigabit Ethernet Blade Switch
SKU: 410916R-B21
Price: $211.00
436010-001 - HP PCI-Express Pass-thru Mezaanine Card for C-Class Blade System
SKU: 436010-001
Price: $71.58
583210-B21 - HP QLogic 4X QDR Infiniband Dual-Port PCI-Express 2.0 X8 Mezzanine HCA for C-Class Blade System
SKU: 583210-B21
Price: $96.84
649996-001 - HP 4GB Type DC4 Fibre Channel Arbitrated Loop (FCAL) Module for 3PAR V-Class/P10000 and T-Class Storage Systems
SKU: 649996-001
Price: $168.42
451017-B21 - HP Smart Array P700M/512MB PCI-Express x8 SAS 3GB/s ISS RAID Controller Mezzanine Card for Blade C-class Servers
SKU: 451017-B21
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.