The Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 costs $0.0428/GB while the Seagate Exos X20 ST18000NM003D 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive (ST18000NM003D) costs $0.0361/GB. Seagate Exos X20 ST18000NM003D 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive (ST18000NM003D) offers 16% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 vs Seagate Exos X20 ST18000NM003D 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive (ST18000NM003D) — Which Is Better Value?
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Specification Comparison
| Spec | Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 | Seagate Exos X20 ST18000NM003D 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive (ST18000NM003D) |
|---|---|---|
| Brand | Seagate | Seagate |
| Capacity | 18TB | 18TB |
| $/GB | $0.0428 | $0.0361 |
| Price | $770.45 | $650.00 |
| Retailer | Newegg | Newegg |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000
Which Should You Buy?
Based on current pricing data, the Seagate Exos X20 ST18000NM003D 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive (ST18000NM003D) offers better value at $0.0361//GB compared to the Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 at $0.0428//GB — that's roughly 16% less per gigabyte.
The best deal for the Seagate Exos X20 ST18000NM003D 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive (ST18000NM003D) is $650.00 at Newegg, while the Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 starts at $770.45 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 IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 and Seagate Exos X20 ST18000NM003D 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive (ST18000NM003D) product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 or Seagate Exos X20 ST18000NM003D 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive (ST18000NM003D) a better deal?
As of August 2026, Seagate Exos X20 ST18000NM003D 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive (ST18000NM003D) offers better value at $0.0361//GB compared to Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 at $0.0428//GB. That is approximately 16% better value per gigabyte.
What is the price per GB of Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000?
The Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 is currently priced at $0.0428/GB ($770.45 for 18TB) at Newegg.
Where can I buy Seagate Exos X20 ST18000NM003D 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive (ST18000NM003D) for the cheapest price?
The cheapest price for the Seagate Exos X20 ST18000NM003D 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive (ST18000NM003D) is $650.00 at Newegg, which works out to $0.0361/GB.