The Seagate ST4000LM016 4TB 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5' Internal Notebook Hard Drive costs $0.0403/GB while the HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) costs $0.0375/GB. HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) offers 7% better value per gigabyte as of September 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.

Seagate ST4000LM016 4TB 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5' Internal Notebook Hard Drive vs HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) — Which Is Better Value?

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Specification Comparison

SpecSeagate ST4000LM016 4TB 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5' Internal Notebook Hard DriveHGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600)
BrandSeagateHGST
Capacity4TB4TB
$/GB$0.0403$0.0375
Price$161.00$150.00
RetailerNeweggNewegg
CategoryHard Drives (HDD)Hard Drives (HDD)
Subcategoryhddhdd

Price Across Retailers

Seagate ST4000LM016 4TB 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5' Internal Notebook Hard Drive

Newegg$0.0403//GB
$161.00Buy

HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600)

Newegg$0.0375//GB
$150.00Buy

Which Should You Buy?

Based on current pricing data, the HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) offers better value at $0.0375//GB compared to the Seagate ST4000LM016 4TB 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5' Internal Notebook Hard Drive at $0.0403//GB — that's roughly 7% less per gigabyte.

The best deal for the HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) is $150.00 at Newegg, while the Seagate ST4000LM016 4TB 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5' Internal Notebook Hard Drive starts at $161.00 at Newegg.

However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Seagate ST4000LM016 4TB 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5' Internal Notebook Hard Drive and HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) product page for detailed specifications and price history.

Frequently Asked Questions

Is Seagate ST4000LM016 4TB 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5' Internal Notebook Hard Drive or HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) a better deal?

As of September 2026, HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) offers better value at $0.0375//GB compared to Seagate ST4000LM016 4TB 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5' Internal Notebook Hard Drive at $0.0403//GB. That is approximately 7% better value per gigabyte.

What is the price per GB of Seagate ST4000LM016 4TB 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5' Internal Notebook Hard Drive?

The Seagate ST4000LM016 4TB 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5' Internal Notebook Hard Drive is currently priced at $0.0403/GB ($161.00 for 4TB) at Newegg.

Where can I buy HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) for the cheapest price?

The cheapest price for the HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) is $150.00 at Newegg, which works out to $0.0375/GB.

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