Internal hard drives · 20TB capacity

20TB hard drive prices in Australia

The cheapest new 20TB hard drive we saw in the week to 2026-10-27 was $1,039.00 ($51.95 per TB) at Shopping Express on 2026-10-27. Below: the cheapest drive at each retailer, AUD per TB against other sizes, the median price by year since 2023, and the drives behind the figures.

Last observed 2026-10-27 · AUD

49dated prices

6drives

$1,399.0090-day median

This week

Cheapest 20TB hard drive by retailer

Best buys by AUD/TB →

New drives observed 2026-10-20 to 2026-10-27. AUD, excluding delivery.
Retailer	Drive	Price	Observed
Shopping Express	Seagate Barracuda 20TB 7200 RPM 3.5" SATA Desktop Hard Drive Part: ST20000DM001	$1,039.00 $51.95 per TB	2026-10-27 View dated source ↗
Umart	Toshiba 20TB 3.5in SATA Enterprise Storage Hard Drive Part: MG11ACA20TE	$1,429.00 $71.45 per TB	2026-10-24 View dated source ↗

Last 90 days (2026-07-29 to 2026-10-27): low $1,039.00, median $1,399.00 across 45 dated prices.

Cost per terabyte

Hard drive sizes compared this week

Cheapest new drive at each size, 2026-10-20 to 2026-10-27. 1 TB = 1,000 GB.
Size	Cheapest drive	Price	AUD per TB
1TB hard drive	Western Digital 1TB Blue 5400RPM 3.5in SATA Hard Drive Umart · 2026-10-27	$155.00	$155.00
2TB hard drive	Western Digital 2TB Blue Pro 7200RPM 3.5in SATA Hard Drive Umart · 2026-10-27	$249.00	$124.50
4TB hard drive	Western Digital 4TB Blue 128MB Cache 5400RPM 3.5in SATA Hard Drive Umart · 2026-10-27	$279.00	$69.75
6TB hard drive	Western Digital 6TB Purple 3.5in SATAIII Hard Drive Umart · 2026-10-27	$449.00	$74.83
8TB hard drive	Seagate BarraCuda 8TB 3.5in SATA HDD, Scorptec · 2026-10-27	$465.00	$58.13
10TB hard drive	Western Digital 10TB Blue 3.5in SATA 7200 RPM Desktop Hard Drive Umart · 2026-10-27	$699.00	$69.90
12TB hard drive	Seagate IronWolf 12TB 7200 RPM 3.5" SATA NAS Internal Hard Drive Shopping Express · 2026-10-27	$829.00	$69.08
16TB hard drive	Seagate 16TB Barracuda 3.5in SATA 3 7200RPM Hard Drive Umart · 2026-10-27	$869.00	$54.31
20TB hard drive	Seagate Barracuda 20TB 7200 RPM 3.5" SATA Desktop Hard Drive Shopping Express · 2026-10-27	$1,039.00	$51.95
24TB hard drive	Seagate Barracuda 24TB 7200 RPM 3.5" SATA Desktop Hard Drive Shopping Express · 2026-10-27	$1,089.00	$45.38
1TB external hard drive	ADATA HV320 1TB USB 3.0 Slim Portable External Hard Drive - Black Mwave · 2026-10-27	$166.95	$166.95
2TB external hard drive	ADATA Rugged Pro HD710 2TB USB 3.0 Portable External Hard Drive Mwave · 2026-10-27	$199.00	$99.50

20TB hard drive price trend by year

Median observed 20TB hard drive price per calendar year, AUD. Dots mark dated prices; we have no prices between them.

Year	Median	Lowest	Median per TB	Prices	Drives
2023	$784.95	$784.95	$39.25	1	1
2024	$772.95	$772.95	$38.65	1	1
2025	$854.95	$854.95	$42.75	1	1
2026	$1,399.00	$590.95	$69.95	46	4

Medians mix brands, interfaces and drive classes within one year. Years without a captured listing are missing, never estimated.

Price histories

20TB hard drives we track

Drive	Last observed price	Date	Prices
MG11ACA20TE	$1,599.00 at Umart	2026-10-27	17
ST20000DM001	$1,039.00 at Shopping Express	2026-10-27	14
ST20000NT001	$1,469.00 at Shopping Express	2026-10-27	14

Size is the stated capacity; AUD per TB uses 1 TB = 1,000 GB.External, portable and USB drives are excluded here and listed separately. Open-box, refurbished and used offers are excluded. See sources and methodology.