The Synology HAT5310-20T 20TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Enterprise 3.5' SATA HDD costs $0.0575/GB while the Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 costs $0.0370/GB. Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 offers 36% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Synology HAT5310-20T 20TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Enterprise 3.5' SATA HDD vs Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 — Which Is Better Value?
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Specification Comparison
| Spec | Synology HAT5310-20T 20TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Enterprise 3.5' SATA HDD | Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 |
|---|---|---|
| Brand | Synology | Seagate |
| Capacity | 20TB | 18TB |
| $/GB | $0.0575 | $0.0370 |
| Price | $1149.99 | $666.10 |
| 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 Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 offers better value at $0.0370//GB compared to the Synology HAT5310-20T 20TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Enterprise 3.5' SATA HDD at $0.0575//GB — that's roughly 36% less per gigabyte.
The best deal for the Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 is $666.10 at Newegg, while the Synology HAT5310-20T 20TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Enterprise 3.5' SATA HDD starts at $1149.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Synology HAT5310-20T 20TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Enterprise 3.5' SATA HDD and Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 product page for detailed specifications and price history.
Frequently Asked Questions
Is Synology HAT5310-20T 20TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Enterprise 3.5' SATA HDD or Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 a better deal?
As of August 2026, Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 offers better value at $0.0370//GB compared to Synology HAT5310-20T 20TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Enterprise 3.5' SATA HDD at $0.0575//GB. That is approximately 36% better value per gigabyte.
What is the price per GB of Synology HAT5310-20T 20TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Enterprise 3.5' SATA HDD?
The Synology HAT5310-20T 20TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Enterprise 3.5' SATA HDD is currently priced at $0.0575/GB ($1149.99 for 20TB) at Newegg.
Where can I buy Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 for the cheapest price?
The cheapest price for the Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 is $666.10 at Newegg, which works out to $0.0370/GB.