WD40EFZZ: Western Digital Red Plus 4TB 5400RPM SATA 6Gb/s 128MB 3.5-Inch NAS Hard Drive
MPN: WD40EFZZ|By: Western Digital
Starting from
$215
Indicative. Final pricing is confirmed with your quote.
In Stockships worldwide
Key specs
- Capacity
- 4TB
- Interface Standard
- 6Gb/s
- Drive Interface
- SATA
- Rotational Speed
- 5400RPM
- Form Factor
- 3.5-Inch
- Condition:
- New (authorized channel)
- Warranty:
- Full manufacturer warranty
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Bulk order? Request volume pricing
Authorized & warrantied
Sourced through authorized distribution, with the full manufacturer warranty.
Compatibility checked
Validated against your server platform before dispatch.
Delivery & lead time
Confirmed with your quote, including expedited freight where available.
Business & public sector
POs, net terms and volume pricing for qualified organizations, government and edu.
Product overview
The Western Digital red plus 4TB 5400RPM SATA 6Gb/s 128MB 3.5-Inch NAS hard Drive is supplied under part number WD40EFZZ. Vendor-keyed firmware is the usual reason a mechanically identical drive is rejected by the controller, and a 4TB spare is not worth discovering that on. We check the firmware family against your controller before the drive ships.
Quote requests are answered within 48 business hours, with availability confirmed before you raise a purchase order rather than after.
Specifications
General
- Manufacturer part number
- WD40EFZZ
- Product Type
- Server Hard Drives
- Manufacturer
- Western Digital
Technical specifications
- Capacity
- 4TB
- Rotational Speed
- 5400RPM
Interfaces & connectivity
- Drive Interface
- SATA
- Interface Standard
- 6Gb/s
Physical
- Form Factor
- 3.5-Inch
The table below is what the server hard drive is documented as, not what we have inferred from the part number. If the figure you need is missing, ask and we will source it from the manufacturer.
Where the Western Digital WD40EFZZ is deployed
- Like-for-like replacement of WD40EFZZ in an existing system
- Growing bulk capacity in an existing disk shelf
- Rebuilding a parity group after a drive failure
Who this part is for
- Backup and archive teams growing bulk capacity in an existing shelf
- IT teams swapping a failed drive in a live parity group
- Procurement replacing drives out of a maintenance contract
What you get ordering this from us
Ordered by part number
WD40EFZZ is what is quoted and WD40EFZZ is what ships; where an alternate code is genuinely the same part we name it rather than swap it silently.
Answered by a human
A quote comes back with the reasoning attached, including the cases where we think you should buy something else.
Compatibility checked
We confirm the part is supported on your platform before it ships, rather than leaving the check to you.
Questions buyers ask about this part
Is WD40EFZZ genuine and is the warranty intact?
Yes. It ships new in Western Digital packaging, which is what keeps the warranty and the firmware entitlement valid. Anything we cannot supply that way we tell you about before you order.
Will WD40EFZZ work in my server?
Send the server model or the shelf it is going into. Vendor-keyed firmware is the usual reason an identical-looking drive is rejected, so we check that alongside interface and form factor.
Do you accept purchase orders and quote at volume?
Yes. We quote against a purchase order and hold the price for the quote period, with tiered rates at quantity. Net terms are available once the account is approved.
Compare other Server Hard Drives we stock
| Model | Brand | Key spec | Availability | From |
|---|---|---|---|---|
| Seagate Exos X18 12TB 7200RPM SAS 12Gb/s 512e 3.5-inch Enterprise Hard Drive | Seagate | Capacity: 12TB | In Stock | $280 |
| Toshiba MG09 16TB 7200RPM SATA 6Gb/s 512e 3.5-inch Enterprise Hard Drive | Toshiba | Capacity: 16TB | In Stock | $335 |
| Hitachi HGST Ultrastar He10 8TB 7200 RPM 12Gb/s SAS 512e 3.5"-inch Enterprise Hard Drive | Hitachi | Capacity: 8TB | In Stock | $190 |
| Dell 4TB 7200RPM 12Gb/s SAS 512e 3.5-inch Hot-Plug Nearline PowerEdge Hard Drive | Dell Technologies | Capacity: 4TB | In Stock | $155 |
| HPE 4TB 7200RPM 12Gb/s SAS 512e 3.5-inch LFF Smart Carrier Midline ProLiant Hard Drive | HPE | Capacity: 4TB | In Stock | $155 |
| HP 2TB 7200RPM 6Gb/s SAS 512n 3.5-inch LFF Smart Carrier Midline ProLiant Gen8 Hard Drive | HP | Capacity: 2TB | In Stock | $80 |
Browse all Server Hard Drives or everything we stock from Western Digital.
Specifying a system, not just the part?
Bulk capacity usually sits behind the flash tier that feeds a training cluster rather than under it.