---
title: Hard Drives (HDD) ranked by $/GB
canonical: "https://www.buyperunit.com/storage/hard-drives"
unit: $/GB
asOf: "2026-09-22T18:52:40.173+00:00"
productCount: 925
listingCount: 1251
median: 0.062137
cheapest: Avolusion PRO-H1 Series 14TB 7200RPM USB 3.2 Gen2 (10Gbps) External Hard Drive (for Windows or MacOS Desktop PC/Laptop) — $0.025/GB at Amazon
license: CC BY 4.0
---
# Hard Drives (HDD) ranked by $/GB

As of September 22, 2026, 18:52 UTC, the lowest price per gigabyte among Hard Drives (HDD) on BuyPerUnit is $0.025/GB — the Avolusion PRO-H1 Series 14TB 7200RPM USB 3.2 Gen2 (10Gbps) External Hard Drive (for Windows or MacOS Desktop PC/Laptop) ($349.99 at Amazon). BuyPerUnit tracks 925 products across 1,251 in-stock listings in this category at Amazon, Best Buy, and Newegg, updated twice daily; the median is $0.062/GB.

## Top 20 in-stock listings by $/GB

| # | Product | Brand | Capacity | Retailer | Price | $/GB |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | [Avolusion PRO-H1 Series 14TB 7200RPM USB 3.2 Gen2 (10Gbps) External Hard Drive (for Windows or MacOS Desktop PC/Laptop)](https://www.buyperunit.com/product/5393e18d-779d-4f3f-be7e-645c37392719) | Avolusion | 14 TB | Amazon | $349.99 | $0.025/GB |
| 2 | [WD2003FYYS-18W0B0 - DELL WD2003FYYS-18W0B0 DELL 2TB 7.2K 3G LFF SATA HARD DRIVE](https://www.buyperunit.com/product/fd9e73fd-4124-4693-bed9-58c00cebd25e) | Western Digital | 2TB | Newegg | $52.95 | $0.026/GB |
| 3 | [WL 6TB 5700RPM 64MB Cache 5700RPM SATA III (6.0Gb/s) 3.5" Internal Hard Drive (Desktop PC, CCTV DVR, NAS) - w/1 Year Warranty](https://www.buyperunit.com/product/3cd01056-f92d-4df3-ad02-7178838a1ae7) | White Label | 6 TB | Amazon | $179.99 | $0.030/GB |
| 4 | [Seagate Expansion 24TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP24000400)](https://www.buyperunit.com/product/4e26e46b-f271-4cf2-8ea8-9e3f4e6aaa52) | Seagate | 24 TB | Amazon | $720.90 | $0.030/GB |
| 5 | [OSENTRiX GX100 10TB USB 3.2 Gen 2 USB-C External Hard Drive with USB Hub for Windows or MacOS Desktop PC/Laptop - 2 Year Warranty](https://www.buyperunit.com/product/b5f448fd-1744-4f2d-8ebb-1db105ef274c) | OSENTRiX | 10 TB | Amazon | $309.99 | $0.031/GB |
| 6 | [Seagate BarraCuda NE-ST8000DM004 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive](https://www.buyperunit.com/product/1af4a182-d005-42ce-8bf6-d589ab319b9c) | Seagate | 8TB | Newegg | $249.99 | $0.031/GB |
| 7 | [Seagate - Barracuda 8TB Internal Hard Drive for Desktops](https://www.buyperunit.com/product/737f7852-9ab2-4de3-9ce3-db1f7c82df39) | Seagate | 8 TB | Best Buy | $249.99 | $0.031/GB |
| 8 | [Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004)](https://www.buyperunit.com/product/09bc2d8c-5c21-4c2f-a24a-f7ddc22bdb50) | Seagate | 8 TB | Amazon | $249.99 | $0.031/GB |
| 9 | [WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4)](https://www.buyperunit.com/product/15557026-162b-4d6d-92a1-af5aba482c96) | Western Digital | 18TB | Newegg | $570.19 | $0.032/GB |
| 10 | [Seagate 16TB One Touch Desktop Hard Drive \| USB-C (STNB16000400)](https://www.buyperunit.com/product/c5942459-a1e1-4389-8fb1-8b121a64f30c) | Seagate | 16 TB | Amazon | $509.99 | $0.032/GB |
| 11 | [Seagate - Seagate One Touch Desktop HDD 16TB - Space Gray](https://www.buyperunit.com/product/6122dbeb-260d-437b-a026-7277d01cf298) | Seagate | 16 TB | Best Buy | $509.99 | $0.032/GB |
| 12 | [Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR)](https://www.buyperunit.com/product/83ce0828-2435-4b40-ac80-376842b12da7) | Seagate | 20TB | Newegg | $639.00 | $0.032/GB |
| 13 | [TOSHIBA HDWG62CUZSVA 22TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Hard Drive Retail](https://www.buyperunit.com/product/4bf89290-34a9-4fd7-9d3a-651e40cee8e9) | Toshiba | 22TB | Newegg | $709.00 | $0.032/GB |
| 14 | [Seagate One Touch 24TB External Hard Drive Desktop HDD - USB-C Compatible with Most Windows and macOS, Rescue Recovery (STNB24000400)](https://www.buyperunit.com/product/4474f826-8c99-4c65-a170-581644476331) | Seagate | 24 TB | Amazon | $779.99 | $0.033/GB |
| 15 | [HGST - IMSOURCING 0F14688 4TB 7200RPM SATA 3.5IN](https://www.buyperunit.com/product/2373e05f-ec42-4395-82f1-f9a398d7626a) | HGST | 4TB | Newegg | $130.71 | $0.033/GB |
| 16 | [WD Ultrastar DC HC550 16TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38462 (WUH721816ALE6L4)](https://www.buyperunit.com/product/6e91e972-2388-4c8e-bbfd-bb6ed2b7836f) | Western Digital | 16TB | Newegg | $526.58 | $0.033/GB |
| 17 | [Seagate IronWolf ST12000VN0008 12 TB Hard Drive - 3.5' Internal - SATA (SATA/600) (ST12000VN0008) - OEM Pack, International Version No Warranty](https://www.buyperunit.com/product/97072b1b-7727-471a-ad8d-08dd6bc82ee3) | Seagate | 12TB | Newegg | $400.00 | $0.033/GB |
| 18 | [Seagate - Seagate One Touch Desktop HDD 8 TB - Space Gray](https://www.buyperunit.com/product/cdef34e6-c896-4acc-a0b6-475150cd6507) | Seagate | 8 TB | Best Buy | $269.99 | $0.034/GB |
| 19 | [Seagate BarraCuda NE-ST8000DM004 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive](https://www.buyperunit.com/product/1af4a182-d005-42ce-8bf6-d589ab319b9c) | Seagate | 8TB | Newegg | $275.00 | $0.034/GB |
| 20 | [Avolusion PRO-T5 4TB USB 3.0 External Hard Drive for Windows & Mac OS (White) - 2 Year Warranty](https://www.buyperunit.com/product/5146c98b-ef7a-4e5d-8ac5-fa1a259b0523) | Avolusion | 4 TB | Amazon | $139.99 | $0.035/GB |

## Distribution ($/GB across 1,251 in-stock listings)

| Min | 25th percentile | Median | 75th percentile |
| --- | --- | --- | --- |
| $0.025/GB | $0.049/GB | $0.062/GB | $0.098/GB |

Methodology: price per unit = retail price ÷ capacity in gigabytes. Only in-stock, new-condition listings from Amazon, Best Buy, and Newegg are ranked; prices re-sync twice daily (06:00 and 18:00 UTC). Full detail: https://www.buyperunit.com/methodology

Data: CC BY 4.0 — cite BuyPerUnit (https://www.buyperunit.com). JSON for every category: https://www.buyperunit.com/api/stats. HTML page: https://www.buyperunit.com/storage/hard-drives