Replacement for BB856A: Drop-In Alternatives We Stock
Looking for a replacement for the BB856A (BB856A - HP StoreOnce 4420 12 x 1TB HDD with 10 Gigabit Ethernet Fibre Channel Rack-Mountable Backup 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 BB856A
| SKU | BB856A |
|---|---|
| Product | BB856A - HP StoreOnce 4420 12 x 1TB HDD with 10 Gigabit Ethernet Fibre Channel Rack-Mountable Backup Server |
| Current price | $4,415.79 |
| Stock status | In Stock |
| Detail page | View BB856A › |
Drop-in replacements for BB856A
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.
BB857A - HP StoreOnce 4430 12 x 24TB HDD with 10 Gigabit Ethernet Fibre Channel 4U Rack-Mountable Backup Server
SKU: BB857A
Price: $4,626.32
HPE R0X39-61201 Aruba 6400 48-Ports PoE 1000Base-T RJ-45 Gigabit Ethernet 4-Portss 50GBase-X 50 Gigabit Ethernet SFP56 Plug-in Module Switch Module
SKU: R0X39-61201
Price: $13,348.74
628690-001 - HP ProLiant DL120 G7- 1x Intel Core i3 2100/3.1GHz 2GB DDR3 Ram 1x 250GB HDD 2x Gigabit Ethernet 1u Rack Server
SKU: 628690-001
Price: $626.32
444809-001 - HP ProLiant Ml110 G51x Intel Pentium Dual Core E2160 1.8GHz CPU 512MB RAM 160GB HDD DVD ROM Gigabit Ethernet 4u Tower Server
SKU: 444809-001
Price: $1,173.68
P03734-001 - HP 12V HDD PDB to HDD BP Power Cable for Apollo 6500 Gen10 Server System
SKU: P03734-001
Price: $326.32
QK698A - HP StorageWorks D2600 DAS Hard Drive Array 10 x HDD 20 TB Installed HDD Capacity RAID Supported 12 x Total Bays 2U Rack-mountable
SKU: QK698A
Price: $14,009.63
HPE JL812A#ABA Instant On 1830-24G-2SFP 24-Ports RJ-45 Autosensing Gigabit 10/100/1000Base-T 2x SFP Layer 2 Manageable 1U Rack Mount Gigabit Ethernet Network Switch
SKU: JL812A#ABA
Price: $242.11
HPE JE069-61201 HP JE069-61201 5120 Series 5120-48G EI 44xPorts 10/100/1000Base-T + 4xCombo Gigabit SFP Ports Layer3 Managed Gigabit Ethernet Switch
SKU: JE069-61201
Price: $273.68
HPE JE069-61001 HP JE069-61001 5120 Series 5120-48G EI 44xPorts 10/100/1000Base-T + 4xCombo Gigabit SFP Ports Layer3 Managed Gigabit Ethernet Switch
SKU: JE069-61001
Price: $273.68
HPE JG245AR EI A5120-24G 24-Ports 10/100/1000 + 4xCombo Gigabit SFP Rack-mountable Layer 3 Managed Gigabit Ethernet Network Switch
SKU: JG245AR
Price: $602.11
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.