- Stock: 10 remaining
- Brand: WD
- Model: WD40EFZZ
WD Red Plus 4TB NAS HDD WD40EFZZ — Authorized Goods
Authorized Goods 3-Year Warranty
The WD Red Plus WD40EFZZ is a 4TB, 3.5-inch SATA NAS drive running at 5400 RPM with a 128MB cache. It ships tuned with NASware for RAID arrays and 24×7 continuous operation, making it a solid fit for a two-to-four-bay home NAS holding photos and documents, or a small office sharing files across a RAID 1 or RAID 5 volume.
WD rates the drive for NAS systems with up to 8 bays, a 180TB/year workload and 1M hours MTBF, and builds in rotation vibration (RV) sensors to counter vibration in multi-drive enclosures. Supplied by Hinkwong as Authorized Goods with the manufacturer's 3-year limited warranty.
Positioning
WD Red Plus is built for NAS, not desktop duty. The WD40EFZZ trades spindle speed for lower power draw and quieter running, which suits a NAS that stays powered on around the clock.
Key Specs
4TB capacity, 3.5-inch form factor, SATA interface, 128MB cache and 5400 RPM. WD rates transfer speed at up to 180MB/s, with NASware firmware tuned for RAID compatibility.
Use Cases
A good match for a compact two-to-four-bay NAS in a Hong Kong flat backing up photos, documents and media, or a small office running shared folders on RAID 1 or RAID 5 with 24×7 uptime.
Buying Notes
Check that your NAS accepts 3.5-inch SATA drives and confirm your target bay count; WD rates the drive for RAID systems up to 8 bays. Authorized Goods with a 3-year limited warranty — back up before swapping drives.
Specifications
| Model | WD40EFZZ |
|---|---|
| Capacity | 4TB |
| Form Factor | 3.5-inch |
| Interface | SATA |
| Spindle Speed | 5400 RPM |
| Cache | 128MB |
| Rated Transfer Rate | Up to 180MB/s |
| Rated Workload | 180TB per year |
| Rated MTBF | 1M hours |
| Rated NAS Bay Support | Up to 8-bay RAID-optimized NAS systems |
| Operating Profile | 24×7 continuous operation |
| Drive Technologies | NASware firmware tuning, rotation vibration (RV) sensors |
| Warranty Period | 3-year limited warranty (Authorized Goods) |
FAQ
Does the WD Red Plus WD40EFZZ come with a NAS enclosure?
No. The price covers one WD40EFZZ 4TB drive only — no NAS chassis, drive trays or cables. Confirm your NAS bay count and 3.5-inch SATA support before ordering.
Can I use the WD40EFZZ in a RAID array?
WD rates WD Red Plus for RAID-optimized NAS systems with up to 8 bays, with NASware tuning for compatibility and reliability. Always check your NAS vendor's compatibility list for the exact model.
How is the WD Red Plus WD40EFZZ different from a desktop drive?
The WD40EFZZ is designed for 24×7 operation, rated at 180TB per year workload and 1M hours MTBF, and includes rotation vibration sensors for multi-drive enclosures — none of which are typical desktop-drive design priorities.
Is 5400 RPM fast enough on the WD40EFZZ?
WD rates transfer speed at up to 180MB/s. That is generally fine for photo backup, file sharing and media streaming; if you run heavy VM workloads or many small random reads and writes, weigh it against your actual needs.
What warranty does the WD Red Plus WD40EFZZ carry in Hong Kong?
Authorized Goods carry the manufacturer's 3-year limited warranty. The drive is rated for 24×7 operation in RAID systems up to 8 bays — complete a backup before replacing or expanding drives.
Official References
Authorized Goods; specifications per manufacturer.
