Compare Hard Disk Drives

Compare Western Digital Purple Surveillance 6TB vs Purple 18TB

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  2. Hard Disk Drives
  3. Western Digital Purple Surveillance 6TB 🆚 Western Digital Purple 18TB
Western Digital Purple Surveillance 6TB and Western Digital Purple 18TB are both hard disk drives with the same Interface (SATA 6 Gb/s) and Form Factor (3.5"). The main differences are in Capacity, Cache and RPM.
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Western Digital Purple Surveillance 6TB SATA 6 Gb/s 256 MB Cache 3.5" WD64PURZ
Western Digital Purple Surveillance 6TB
Western Digital Purple 18TB Surveillance SATA 6 Gb/s 512 MB Cache 3.5" - WD181PURP
Western Digital Purple 18TB
Prices
(Change region)
In Stock
Free shipping
$249.99
In Stock
$259.99
Last updated 28 minutes ago.
Out of Stock
$271.99
Show 3 more offers
Prices
(Change region)
Out of Stock
$299.99
Out of Stock
$459.99
In Stock
$734.99
Last updated 26 minutes ago.
Show 2 more offers
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* Product prices and availability are subject to change frequently. Any price and availability information displayed on Amazon at the time of purchase will apply.
Brand
Western Digital
Brand
Western Digital
Model
WD64PURZ
Model
WD181PURP
Release Date
📅 May 2023
Release Date
📅 May 2021
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
Price history
View Details ►
Price history
View Details ►
Price/GB
$0.02
Price/GB
$0.02
GB/$1
40.72
GB/$1
60
Capacity
6000 GB
Capacity
18000 GB
Cache
256MB
Cache
512MB
RPM
5400
RPM
7200
Interface
SATA 6 Gb/s
Interface
SATA 6 Gb/s
Form Factor
3.5"
Form Factor
3.5"

Comparison and key differences summary

Reasons to buy the Western Digital Purple Surveillance 6TB:

  • 17% cheaper, you can save $50.00
  • Newer Product, it was released around 2 years later

Buy now

Reasons to buy the Western Digital Purple 18TB:

  • More Capacity (+12000 GB available)
  • Higher Revolutions Per Minute (+1800 RPM)
  • More Internal Cache (+256 MB available)

Buy now

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