8TB

WD Purple 8TB

Western Digital · MPN WD85PURZ

NAS caution· 60
Pricey $/TBvs 8 TB drives
Why this NAS-Safe score? (60/100 — Use with caution)▾

The NAS-Safe Score rates suitability for 24×7 multi-bay NAS / RAID use on a 0–100 scale. It is additive and fully transparent — every point is attributable to a named factor below. Medium confidence — 1 input unverified, scored with neutral partial credit (never guessed).

  • Recording technology35/35

    CMR — safe for RAID rebuilds

  • Vendor NAS endorsement0/15

    Not marketed as a NAS-class drive

  • Rotational-vibration sensors0/15

    No RV sensors — vibration sensitivity in multi-bay chassis

  • Rated workload12/15

    180 TB/yr — NAS tier

  • MTBF rating5/10

    MTBF unknown — partial credit

  • Warranty8/10

    3-year warranty

Sources

Specs

Capacity
8 TB
Class
SURVEILLANCE
Recording
CMR
RPM
5,640
Cache
256 MB
Form factor
3.5"
Interface
SATA 6Gb/s
Warranty
3 years
Workload
180 TB/yr rated

Use-case fit

  • backup
  • surveillance

Live offers(2 retailers)

Price ratings compare a drive against its own price history and the other listings of that same drive — not against other drives. The $/TB badge is the cross-drive comparison. Neither is a compatibility or reliability recommendation.

  • B&H
    new
    Average pricefor this drive· 50
    Why this DealScore? (50/100 — Average price for this drive)▾

    DealScore rates only whether the price is good right now (0–100), and only for this drive: it blends this listing's own price history with the other live listings of the same model. It is not a comparison against other drives — the $/TB badge does that — and use-case fit (NAS-Safe) and seller risk are scored separately.

    Price assessment only — not a compatibility or reliability recommendation.

    • Historical price position33/100×60%

      3 price points

    • Market price position75/100×40%

      2 comparable listings

    $52.00/TB — pricier than 67% of its own price history; beats 75% of comparable listings on $/TB.

    Aug 15 · $415.99↑ $11.00 (+2.7%)
    $415.99
    $52.00/TB
  • eBay
    New
    Seller risk: low
    Expensivefor this drive· 14
    Why this DealScore? (14/100 — Expensive for this drive)▾

    DealScore rates only whether the price is good right now (0–100), and only for this drive: it blends this listing's own price history with the other live listings of the same model. It is not a comparison against other drives — the $/TB badge does that — and use-case fit (NAS-Safe) and seller risk are scored separately.

    Price assessment only — not a compatibility or reliability recommendation.

    • Historical price position6/100×60%

      8 price points

    • Market price position25/100×40%

      2 comparable listings

    $53.75/TB — pricier than 94% of its own price history; beats 25% of comparable listings on $/TB.

    Aug 14 · $429.99↑ $20.00 (+4.9%)
    $429.99
    $53.75/TB

Prices snapshotted daily. See our scoring methodology.