Best WD Purple 4TB HDD Deals of Nov 2026

Updated November 10, 2026Our site contains affiliate links for which we may be compensated.
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Western Digital

Western Digital WD43PURZ 4TB Purple Surveillance Internal Hard Drive, 3.5-Inch, SATA 6Gb/s, 256MB Cache

Engineered for mainstream surveillance systems
WD AllFrame technology delivers optimizations for write-intensive, low bit-rate, high stream-count workloads typical to mainstream surveillance applications
Supports up to 180 TB/yr workload rate(3) | (3) Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred ✕ (8760 / recorded power-on hours)). Workload Rate will vary depending on your hardware and software components and configurations.
Support for up to 16 bays(7) | (7) 1TB through 2TB support up to eight bays; 3TB and above support up to 16 bays.
Tarnish-resistant components(6) | (6) Tarnish resistant components for capacities 3TB and higher.
Priced lower than 60% of Internal Hard Drives
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on Amazon.com
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Western Digital

Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD42PURZ

Engineered specifically for mainstream surveillance systems.Specific uses: Business, personal
AllFrame technology delivers optimizations for write-intensive, low bit-rate, high stream-count workloads typical to mainstream surveillance applications.
Supports up to 180 TB/yr workload rate². | ²Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred ✕ (8760 / recorded power-on hours)). Workload Rate will vary depending on your hardware and software components and configurations.
1TB¹ through 3TB support up to eight bays; 4TB and above support up to 16 bays and employ tarnish-resistant components for harsher environments.
¹As used for storage capacity, 1TB = one trillion bytes. Actual user capacity may be less, depending on operating environment.
Priced lower than 60% of Internal Hard Drives
Details & specs
Check Price
on Amazon.com
Our #1 Pick Today
Best Seller
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Western Digital

Western Digital WD43PURZ 4TB Purple Surveillance Internal Hard Drive, 3.5-Inch, SATA 6Gb/s, 256MB Cache

Engineered for mainstream surveillance systems
WD AllFrame technology delivers optimizations for write-intensive, low bit-rate, high stream-count workloads typical to mainstream surveillance applications
Supports up to 180 TB/yr workload rate(3) | (3) Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred ✕ (8760 / recorded power-on hours)). Workload Rate will vary depending on your hardware and software components and configurations.
Support for up to 16 bays(7) | (7) 1TB through 2TB support up to eight bays; 3TB and above support up to 16 bays.
Tarnish-resistant components(6) | (6) Tarnish resistant components for capacities 3TB and higher.
Priced lower than 60% of Internal Hard Drives
Details & specs
Check Price
on Amazon.com
Disclaimer: While we make every effort to ensure accuracy, we cannot guarantee that all product specifications, pricing, discounts, and details are complete or error-free. Because information is subject to change, we recommend verifying all details directly with the retailer prior to making a purchase. As an Amazon Associate, we earn from qualifying purchases.

7 WD Purple 4TB HDD deals are available from: Amazon, starting from $164.99.

The biggest discount we found is 28% on WD Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD40PURX (Renewed) (WD40PURX) at Amazon.

The lowest price we found is $164.99 while the highest is $244.99. Prices for the best WD Purple 4TB HDD deals average at $211.82.