The Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) costs $0.0289/GB while the Seagate IronWolf Pro 28TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST28000NT000) costs $0.0282/GB. Seagate IronWolf Pro 28TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST28000NT000) offers 2% better value per gigabyte as of April 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) vs Seagate IronWolf Pro 28TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST28000NT000) — Which Is Better Value?
Specification Comparison
| Spec | Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) | Seagate IronWolf Pro 28TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST28000NT000) |
|---|---|---|
| Brand | Seagate | Seagate |
| Capacity | 18TB | 28 TB |
| $/GB | $0.0289 | $0.0282 |
| Price | $520.00 | $789.99 |
| Retailer | Newegg | Amazon |
| Category | Hard Drives & SSDs | Hard Drives & SSDs |
| Subcategory | hdd | hdd |
Price Across Retailers
Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600)
Seagate IronWolf Pro 28TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST28000NT000)
Which Should You Buy?
Based on current pricing data, the Seagate IronWolf Pro 28TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST28000NT000) offers better value at $0.0282//GB compared to the Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) at $0.0289//GB — that's roughly 2% less per gigabyte.
The best deal for the Seagate IronWolf Pro 28TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST28000NT000) is $789.99 at Amazon, while the Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) starts at $520.00 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 Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) and Seagate IronWolf Pro 28TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST28000NT000) product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) or Seagate IronWolf Pro 28TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST28000NT000) a better deal?
As of April 2026, Seagate IronWolf Pro 28TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST28000NT000) offers better value at $0.0282//GB compared to Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) at $0.0289//GB. That is approximately 2% better value per gigabyte.
What is the price per GB of Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600)?
The Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) is currently priced at $0.0289/GB ($520.00 for 18TB) at Newegg.
Where can I buy Seagate IronWolf Pro 28TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST28000NT000) for the cheapest price?
The cheapest price for the Seagate IronWolf Pro 28TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST28000NT000) is $789.99 at Amazon, which works out to $0.0282/GB.