Replacement for 404840-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 404840-B21 (404840-B21 - HP ProLiant BL45p G2 Base Model Server)? 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 404840-B21
| SKU | 404840-B21 |
|---|---|
| Product | 404840-B21 - HP ProLiant BL45p G2 Base Model Server |
| Current price | $2,226.32 |
| Stock status | In Stock |
| Detail page | View 404840-B21 › |
Drop-in replacements for 404840-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.
712318-001 - HP ProLiant Micro Server G8 Base Model- 1x Intel Pentium DC G2020t/2.5GHz, 2GB DDR3 Ram, 2x Gigabit Ethernet, Ultra Micro Tower Server
SKU: 712318-001
Price: $992.70
783359-S01 - HP ProLiant DL160 G9 S-Buy Base Model- Xeon 6-Core E5-2620-V3/2.4GHz, 16GB DDR4 Sdram, 2x Gigabit Ethernet, 550w Ps, 1u Rack Server
SKU: 783359-S01
Price: $145.26
365172-405 - HP ProLiant DL145 G1 1u Rack SATA CTO Chassis with -No CPU -0MB Ram -No HDD -Broadcom 5704-Nic 8MB ATI Rage Xl Base Model Server
SKU: 365172-405
Price: $221.05
589150-421 - HP ProLiant DL380 G7 Intel Xeon E5630 4-Core 2.53GHz CPU 6GB RAM 460-Watt Power Supply Base Model Server System
SKU: 589150-421
Price: $373.21
438087-001 - HP ProLiant DL580 G5 Base Model Intel Xeon E7330 4-Core 2.4GHz CPU 4GB RAM 4U Rack Server
SKU: 438087-001
Price: $707.37
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.