The Seagate IronWolf 4TB NAS Internal Hard Drive CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage Rescue Services (ST4000VNZ06/006) costs $0.0423/GB while the For 656108-001 655710-B21 7.2K 1T SATA 2.5'' Hard Drive 1TB costs $0.1368/GB. Seagate IronWolf 4TB NAS Internal Hard Drive CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage Rescue Services (ST4000VNZ06/006) offers 69% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate IronWolf 4TB NAS Internal Hard Drive CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage Rescue Services (ST4000VNZ06/006) vs For 656108-001 655710-B21 7.2K 1T SATA 2.5'' Hard Drive 1TB — Which Is Better Value?
Specification Comparison
| Spec | Seagate IronWolf 4TB NAS Internal Hard Drive CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage Rescue Services (ST4000VNZ06/006) | For 656108-001 655710-B21 7.2K 1T SATA 2.5'' Hard Drive 1TB |
|---|---|---|
| Brand | Seagate | For |
| Capacity | 4 TB | 1TB |
| $/GB | $0.0423 | $0.1368 |
| Price | $169.37 | $136.77 |
| Retailer | Amazon | 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 IronWolf 4TB NAS Internal Hard Drive CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage Rescue Services (ST4000VNZ06/006) offers better value at $0.0423//GB compared to the For 656108-001 655710-B21 7.2K 1T SATA 2.5'' Hard Drive 1TB at $0.1368//GB — that's roughly 69% less per gigabyte.
The best deal for the Seagate IronWolf 4TB NAS Internal Hard Drive CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage Rescue Services (ST4000VNZ06/006) is $169.37 at Amazon, while the For 656108-001 655710-B21 7.2K 1T SATA 2.5'' Hard Drive 1TB starts at $136.77 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 4TB NAS Internal Hard Drive CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage Rescue Services (ST4000VNZ06/006) and For 656108-001 655710-B21 7.2K 1T SATA 2.5'' Hard Drive 1TB product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate IronWolf 4TB NAS Internal Hard Drive CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage Rescue Services (ST4000VNZ06/006) or For 656108-001 655710-B21 7.2K 1T SATA 2.5'' Hard Drive 1TB a better deal?
As of May 2026, Seagate IronWolf 4TB NAS Internal Hard Drive CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage Rescue Services (ST4000VNZ06/006) offers better value at $0.0423//GB compared to For 656108-001 655710-B21 7.2K 1T SATA 2.5'' Hard Drive 1TB at $0.1368//GB. That is approximately 69% better value per gigabyte.
What is the price per GB of Seagate IronWolf 4TB NAS Internal Hard Drive CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage Rescue Services (ST4000VNZ06/006)?
The Seagate IronWolf 4TB NAS Internal Hard Drive CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage Rescue Services (ST4000VNZ06/006) is currently priced at $0.0423/GB ($169.37 for 4 TB) at Amazon.
Where can I buy For 656108-001 655710-B21 7.2K 1T SATA 2.5'' Hard Drive 1TB for the cheapest price?
The cheapest price for the For 656108-001 655710-B21 7.2K 1T SATA 2.5'' Hard Drive 1TB is $136.77 at Newegg, which works out to $0.1368/GB.