As of April 2026, the cheapest 16TB+ hard drives (hdd) on BuyPerUnit costs $0.0258/GB — a Western Digital WD 18TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Auto Backup Software - WDBBGB0180HBK-NESN (18 TB) available at Amazon for $463.99. BuyPerUnit tracks 8 16TB+ hard drives (hdd) across Amazon, Best Buy, and Newegg, updated daily.

16TB+ Hard Drives (HDD)

8 16TB+ products ranked by price per gigabyte. Best value: $0.0258/GB

Products

8

Best $/GB

$0.0258

Highest $/GB

$0.0357

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1

WD 18TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Auto Backup Software - WDBBGB0180HBK-NESN

Western DigitalAmazonHDD

Capacity

18 TB

Price

$463.99

$/GB

$0.026

Check Price at Amazon
2

WD 16TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Backup Software - WDBBGB0160HBK-NESN

Western DigitalAmazonHDD

Capacity

16 TB

Price

$425.00

$/GB

$0.027

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3

WD - easystore 20TB External USB 3.0 Hard Drive - Black

Western DigitalBest Buy2yrHDD
4.6(278)

Capacity

20 TB

Price

$559.99

$/GB

$0.028

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4

Seagate IronWolf Pro 28TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST28000NT000)

SeagateAmazon5yrHDD

Capacity

28 TB

Price

$789.99

$/GB

$0.028

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5

Seagate - IronWolf Pro 24TB NAS Internal Hard Drive with Rescue Data Recovery Services

SeagateBest Buy5yrHDD
4.5(8)

Capacity

24 TB

Price

$679.99

$/GB

$0.028

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6

WD - easystore 18TB External USB 3.0 Hard Drive - Black

Western DigitalBest Buy2yrHDD
4.5(752)

Capacity

18 TB

Price

$509.99

$/GB

$0.028

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7

Seagate IronWolf Pro, 16 TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6 Gb/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST16000NT001)

SeagateAmazonHDD

Capacity

16 TB

Price

$459.99

$/GB

$0.029

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8

WD 44TB My Book Duo Desktop RAID External Hard Drive HDD, USB 3.1, With Password Protection and Auto Backup Software - WDBFBE0440JBK-NESN

Western DigitalAmazon3yrHDD

Capacity

44 TB

Price

$1569.99

$/GB

$0.036

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About 16TB+ Hard Drives (HDD)

Compare all 16TB+ hard drives (hdd) sorted by price per gigabyte. BuyPerUnit tracks 8 products in the 16TB+ capacity range to help you find the best storage deals. Prices range from $0.0258/GB to $0.0357/GB.

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