The WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4) costs $0.0353/GB while the Novus 20TB External USB-C 7200RPM Rugged Hard Drive costs $0.0309/GB. Novus 20TB External USB-C 7200RPM Rugged Hard Drive offers 12% better value per gigabyte as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4) vs Novus 20TB External USB-C 7200RPM Rugged Hard Drive — Which Is Better Value?
Specification Comparison
| Spec | WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4) | Novus 20TB External USB-C 7200RPM Rugged Hard Drive |
|---|---|---|
| Brand | Western Digital | Novus |
| Capacity | 18TB | 20TB |
| $/GB | $0.0353 | $0.0309 |
| Price | $635.07 | $619.00 |
| 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 Novus 20TB External USB-C 7200RPM Rugged Hard Drive offers better value at $0.0309//GB compared to the WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4) at $0.0353//GB — that's roughly 12% less per gigabyte.
The best deal for the Novus 20TB External USB-C 7200RPM Rugged Hard Drive is $619.00 at Newegg, while the WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4) starts at $635.07 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4) and Novus 20TB External USB-C 7200RPM Rugged Hard Drive product page for detailed specifications and price history.
Frequently Asked Questions
Is WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4) or Novus 20TB External USB-C 7200RPM Rugged Hard Drive a better deal?
As of July 2026, Novus 20TB External USB-C 7200RPM Rugged Hard Drive offers better value at $0.0309//GB compared to WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4) at $0.0353//GB. That is approximately 12% better value per gigabyte.
What is the price per GB of WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4)?
The WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4) is currently priced at $0.0353/GB ($635.07 for 18TB) at Newegg.
Where can I buy Novus 20TB External USB-C 7200RPM Rugged Hard Drive for the cheapest price?
The cheapest price for the Novus 20TB External USB-C 7200RPM Rugged Hard Drive is $619.00 at Newegg, which works out to $0.0309/GB.