Replacement for NAS440: Drop-In Alternatives We Stock
Looking for a replacement for the NAS440 (NAS440 - Seagate Blackarmor Series Network Attached Storage Server)? Pro Disk Network ships Seagate 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 NAS440
| SKU | NAS440 |
|---|---|
| Product | NAS440 - Seagate Blackarmor Series Network Attached Storage Server |
| Stock status | In Stock |
| Detail page | View NAS440 › |
Drop-in replacements for NAS440
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.
STAU12000100 - Seagate BlackArmor 440 12TB (4 x 3TB) 4-Bay Network Attached Storage (NAS) Server
SKU: STAU12000100
Price: $2,535.20
ST320005MNA10G-RK - Seagate BlackArmor NAS 110 Network Storage Server - 2TB - RJ-45 Network Serial ATA USB
SKU: ST320005MNA10G-RK
Price: $653.55
ST320005SHA10G-RK - Seagate BlackArmor 420 Network Storage Server - Intel Pentium III 1.2GHz - 2TB - RJ-45 Network Type A USB
SKU: ST320005SHA10G-RK
Price: $1,421.03
Seagate ST18000NM006J Exos X18 Series 18TB 7200RPM SAS 12Gb/s 256MB Cache 3.5-Inch Hard Drive for PowerVault Storage System
SKU: ST18000NM006J
Price: $921.05
STM320004SDA20G-RK - Seagate Maxtor Shared Storage II Network Hard Drive - 2TB - USB
SKU: STM320004SDA20G-RK
Price: $385.75
Seagate ST8000NM024B Exos 7E10 8TB 7200RPM 12Gb/s SAS 256MB Cache 3.5-Inch Hard Drive With Tray For PowerVault Storage System (OEM)
SKU: ST8000NM024B
Price: $273.68
STBF500101 - Seagate 500GB 5400RPM GoFlex Satellite Mobile Wireless Storage Wi-Fi USB 3.0 2.5-inch External Hard Disk
SKU: STBF500101
Price: $344.84
005049206 - EMC / Seagate 900GB 10000RPM SAS 6Gb/s 2.5-inch Hard Drive for VNX 5100 / 5300 Storage System
SKU: 5049206
Price: $370.50
Seagate ST12000NM006J Exos X18 12TB 7200RPM 12Gb/s SAS 256MB Cache 3.5-Inch Hard Drive With Tray For PowerVault Storage System (OEM)
SKU: ST12000NM006J
Price: $721.05
Seagate XA1920LE10007 Enterprise-grade 1.92TB SATA SSD with 3D TLC NAND for cost-effective data center storage
SKU: XA1920LE10007
Price: $1,397.37
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.