The Seagate Laptop Thin ST500LM021 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s 2.5' Hard Drive costs $0.1100/GB while the HGST HUS724030ALA640 - 3TB 3.5' SATA 7,200 RPM 6Gb/s Hard Drive costs $0.0333/GB. HGST HUS724030ALA640 - 3TB 3.5' SATA 7,200 RPM 6Gb/s Hard Drive offers 70% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate Laptop Thin ST500LM021 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s 2.5' Hard Drive vs HGST HUS724030ALA640 - 3TB 3.5' SATA 7,200 RPM 6Gb/s Hard Drive — Which Is Better Value?
Specification Comparison
| Spec | Seagate Laptop Thin ST500LM021 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s 2.5' Hard Drive | HGST HUS724030ALA640 - 3TB 3.5' SATA 7,200 RPM 6Gb/s Hard Drive |
|---|---|---|
| Brand | Seagate | HGST |
| Capacity | 500GB | 3TB |
| $/GB | $0.1100 | $0.0333 |
| Price | $55.00 | $100.00 |
| Retailer | Newegg | Newegg |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the HGST HUS724030ALA640 - 3TB 3.5' SATA 7,200 RPM 6Gb/s Hard Drive offers better value at $0.0333//GB compared to the Seagate Laptop Thin ST500LM021 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s 2.5' Hard Drive at $0.1100//GB — that's roughly 70% less per gigabyte.
The best deal for the HGST HUS724030ALA640 - 3TB 3.5' SATA 7,200 RPM 6Gb/s Hard Drive is $100.00 at Newegg, while the Seagate Laptop Thin ST500LM021 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s 2.5' Hard Drive starts at $55.00 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 Laptop Thin ST500LM021 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s 2.5' Hard Drive and HGST HUS724030ALA640 - 3TB 3.5' SATA 7,200 RPM 6Gb/s Hard Drive product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate Laptop Thin ST500LM021 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s 2.5' Hard Drive or HGST HUS724030ALA640 - 3TB 3.5' SATA 7,200 RPM 6Gb/s Hard Drive a better deal?
As of August 2026, HGST HUS724030ALA640 - 3TB 3.5' SATA 7,200 RPM 6Gb/s Hard Drive offers better value at $0.0333//GB compared to Seagate Laptop Thin ST500LM021 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s 2.5' Hard Drive at $0.1100//GB. That is approximately 70% better value per gigabyte.
What is the price per GB of Seagate Laptop Thin ST500LM021 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s 2.5' Hard Drive?
The Seagate Laptop Thin ST500LM021 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s 2.5' Hard Drive is currently priced at $0.1100/GB ($55.00 for 500GB) at Newegg.
Where can I buy HGST HUS724030ALA640 - 3TB 3.5' SATA 7,200 RPM 6Gb/s Hard Drive for the cheapest price?
The cheapest price for the HGST HUS724030ALA640 - 3TB 3.5' SATA 7,200 RPM 6Gb/s Hard Drive is $100.00 at Newegg, which works out to $0.0333/GB.