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Deal.ai › Western Digital › Internal Hard Drives
Western Digital
WD Red Plus 4TB NAS SATA HDD
Western Digital

WD Red Plus 4TB NAS SATA HDD

4.4(217 ratings)

Best price now

$125.44at BlueDogInkChecked 11 h ago

48% under what the other stores charge

Compared across 13 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $125.44 at BlueDogInk (checked Nov 13, 2026).
  • Checked at 13 stores.

Our take on the WD Red Plus 4TB NAS SATA HDD

The WD Red Plus 4TB is a 3.5-inch internal hard drive built for NAS boxes, using CMR recording rather than the shingled SMR design that hurt earlier Red drives. It spins at 5400 rpm with a 256 MB cache and a SATA 6Gb/s interface, and WD rates it for RAID systems with up to 8 bays. Its 1 million hour MTBF and low 4.7 W read/write draw suit always-on storage in small offices and home labs. Against Seagate IronWolf and Toshiba N300 drives of the same capacity, it is the quieter, cooler-running pick, though slower than 7200 rpm NAS drives.

Best forHome and small-office NAS with up to 8 baysAlways-on backup and file sharingRAID arrays that need CMR drivesQuiet, low-power storage builds
Pros
  • CMR recording, safe for RAID rebuilds
  • Rated 1 million hours MTBF
  • Low power draw at 4.7 W under load
  • 256 MB cache for its capacity
  • Quiet, cool-running 5400 rpm design
Cons
  • 5400 rpm is slower than 7200 rpm NAS drives
  • 4TB fills fast in multi-bay arrays
  • Not for desktop-only use per WD's guidance
  • No vibration sensors like pricier Red Pro models

WD Red Plus 4TB NAS SATA HDD prices at every store

  • Best BuyNew

    In stock

    $194.99Free shippingChecked 11 h ago
    Visit Best Buy
  • NeweggNew

    In stock

    $245.99Free shippingChecked 11 h ago
    Visit Newegg
  • WD StoreNew

    In stock

    $239.99+ $15.00 shippingChecked 11 h ago
    Visit WD Store
  • eBayNew

    In stockSold by dncl-techzone

    $351.08Free shippingChecked 11 h ago
    Visit eBay
  • BlueDogInkNew

    Availability unknown

    $125.44Checked 11 h ago
    Visit BlueDogInk
  • DirectDialNew

    Availability unknown

    $207.00Checked 11 h ago
    Visit DirectDial
  • Neobits.comNew

    Availability unknown

    $227.70Checked 11 h ago
    Visit Neobits.com
  • FilmtoolsNew

    Availability unknown

    $231.68Checked 11 h ago
    Visit Filmtools
  • Tour SupplyNew

    Availability unknown

    $231.68Checked 11 h ago
    Visit Tour Supply
  • SHI InternationalNew

    Availability unknown

    $239.00Checked 11 h ago
    Visit SHI International
  • ITFactory.caNew

    Availability unknownShips from Canada · duties may apply

    $290.59Checked 11 h ago
    Visit ITFactory.ca
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $309.00Free shippingChecked 11 h ago
    Visit Amazon
  • WalmartNew

    Out of stock

    $199.00Checked 11 h ago
    Visit Walmart

Also available at

  • WalmartCheck price at Walmart

Store links may earn us a commission. Some prices via Klarna.

WD Red Plus 4TB NAS SATA HDD price history

Lowest price we've seen: $125.44 on Nov 13 at BlueDogInk. Tracked across 13 stores since Nov 13.

What reviewers say

  • 4.4 / 5217 ratings

Owners rate it well for NAS use, praising reliability and quiet operation in Synology and QNAP boxes. Complaints center on speed and on the SMR history of the Red line.

What people mention
  • ReliabilityPraisedOwners report long service lives in always-on NAS arrays.
  • NoisePraisedReviewers say it runs quietly compared with faster NAS drives.
  • SpeedMixedSequential transfers are fine for backups but slower than 7200 rpm rivals.
  • CMR recordingPraisedBuyers value that it uses CMR, which matters for RAID rebuilds.
  • HeatPraisedLow power draw keeps temperatures down in cramped NAS enclosures.

About the WD Red Plus 4TB NAS SATA HDD

The WD Red Plus is a 4 TB internal 3.5-inch hard drive made for network attached storage (NAS). It is built for power users and small to medium business NAS environments, where it stores, protects and shares growing amounts of data.

It connects over SATA 6Gb/s and spins at 5400 rpm with a 256 MB cache. It is designed for RAID-optimized NAS systems with up to 8 bays.

Capacity
4 TB (4000 GB)
Type
Internal HDD
Form factor
3.5"
Interface
S-ATA 6Gb/s
Speed
5400 rpm
Cache
256 MB
Compatibility
RAID-optimized NAS systems with up to 8 bays
Power (read)
4.7 W
Power (write)
4.7 W
Power (standby)
3.1 W
MTBF
1,000,000 hours
Dimensions
4.0" wide x 5.8" deep x 1.0" high
Weight
20.1 oz

Specifications

hard_drive_capacity
4 TBSource
size
4TBSource
color
OtherSource
shape
Red PlusSource
actual_color
256MBSource

Questions and answers

Is this drive CMR or SMR?
It is CMR. WD moved the Red Plus line to conventional recording, which is what you want for RAID arrays.
How many bays can it go in?
WD rates it for RAID-optimized NAS systems with up to 8 bays.
Is it fast enough for a home NAS?
Yes for backups, media streaming and file sharing. At 5400 rpm it is slower than 7200 rpm NAS drives for heavy simultaneous workloads.
Does it work in a desktop PC?
It fits any standard 3.5-inch SATA bay, but WD designs and warrants it for NAS use.
What is in the box?
The drive itself. SATA cables and mounting screws are not included.
How does it compare with the Red Pro?
Red Pro drives spin at 7200 rpm and add vibration sensors for larger arrays. This one is quieter and draws less power.
Where is the WD Red Plus 4TB NAS SATA HDD cheapest?
At BlueDogInk, for $125.44, 48% under what the other stores charge, as of our latest check.
What do buyers say about the WD Red Plus 4TB NAS SATA HDD?
Rated 4.4 out of 5 from 217 ratings.
Where can I buy the WD Red Plus 4TB NAS SATA HDD?
13 stores we checked sell it, including Newegg, Walmart, Amazon, BlueDogInk, Best Buy.

Stores we've priced the WD Red Plus 4TB NAS SATA HDD at

  • Best Buy deals and prices
  • BlueDogInk deals and prices
  • DirectDial deals and prices
  • Filmtools deals and prices
  • Neobits.com deals and prices
edition
256MBSource
cache_memory
256 MBSource
compatible_brands
RAID-optimized NAS systems with up to 8 baysSource
Wi-Fi
NoSource
Power Consumption (read) (W)
4.7Source
Depth (")
5.8Source
RPM
5400 rpmSource
Form Factor
3.5"Source
Width (")
4.0Source
Type
HDDSource
Weight (oz)
20.1Source
Power Consumption (write) (W)
4.7Source
Placement
InternalSource
Size (GB)
4000Source
Height (")
1.0Source
Cache Memory (MB)
256Source
Power Consumption (Standby) (W)
3.1Source
Interface
S-ATA 6Gb/sSource
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