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 SanDisk Extreme Pro 512GB SDXC UHS-I/U3 V30 Memory Card, Speed Up to 170MB/s (SDSDXXY-512G-GN4IN) costs $0.3135/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 86% 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 SanDisk Extreme Pro 512GB SDXC UHS-I/U3 V30 Memory Card, Speed Up to 170MB/s (SDSDXXY-512G-GN4IN) — 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) | SanDisk Extreme Pro 512GB SDXC UHS-I/U3 V30 Memory Card, Speed Up to 170MB/s (SDSDXXY-512G-GN4IN) |
|---|---|---|
| Brand | Seagate | SanDisk |
| Capacity | 4 TB | 512GB |
| $/GB | $0.0423 | $0.3135 |
| Price | $169.37 | $160.50 |
| Retailer | Amazon | Newegg |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
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)
SanDisk Extreme Pro 512GB SDXC UHS-I/U3 V30 Memory Card, Speed Up to 170MB/s (SDSDXXY-512G-GN4IN)
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 SanDisk Extreme Pro 512GB SDXC UHS-I/U3 V30 Memory Card, Speed Up to 170MB/s (SDSDXXY-512G-GN4IN) at $0.3135//GB — that's roughly 86% 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 SanDisk Extreme Pro 512GB SDXC UHS-I/U3 V30 Memory Card, Speed Up to 170MB/s (SDSDXXY-512G-GN4IN) starts at $160.50 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 SanDisk Extreme Pro 512GB SDXC UHS-I/U3 V30 Memory Card, Speed Up to 170MB/s (SDSDXXY-512G-GN4IN) 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 SanDisk Extreme Pro 512GB SDXC UHS-I/U3 V30 Memory Card, Speed Up to 170MB/s (SDSDXXY-512G-GN4IN) 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 SanDisk Extreme Pro 512GB SDXC UHS-I/U3 V30 Memory Card, Speed Up to 170MB/s (SDSDXXY-512G-GN4IN) at $0.3135//GB. That is approximately 86% 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 SanDisk Extreme Pro 512GB SDXC UHS-I/U3 V30 Memory Card, Speed Up to 170MB/s (SDSDXXY-512G-GN4IN) for the cheapest price?
The cheapest price for the SanDisk Extreme Pro 512GB SDXC UHS-I/U3 V30 Memory Card, Speed Up to 170MB/s (SDSDXXY-512G-GN4IN) is $160.50 at Newegg, which works out to $0.3135/GB.