The Western Digital WD_Blue SN580 M.2 2280 500GB PCI-Express 4.0 x4 TLC Internal Solid State Drive (SSD) WDS costs $0.2709/GB while the KingSpec MemoStone US4 Type-C USSD 1TB Flash Drive SSD Memory Stick, USB 3.1 Gen 2, 540MB/s External Solid State Disk, Type A & C 2-in -1 Dual Drive costs $0.1150/GB. KingSpec MemoStone US4 Type-C USSD 1TB Flash Drive SSD Memory Stick, USB 3.1 Gen 2, 540MB/s External Solid State Disk, Type A & C 2-in -1 Dual Drive offers 58% better value per gigabyte as of September 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Western Digital WD_Blue SN580 M.2 2280 500GB PCI-Express 4.0 x4 TLC Internal Solid State Drive (SSD) WDS vs KingSpec MemoStone US4 Type-C USSD 1TB Flash Drive SSD Memory Stick, USB 3.1 Gen 2, 540MB/s External Solid State Disk, Type A & C 2-in -1 Dual Drive — Which Is Better Value?
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Specification Comparison
| Spec | Western Digital WD_Blue SN580 M.2 2280 500GB PCI-Express 4.0 x4 TLC Internal Solid State Drive (SSD) WDS | KingSpec MemoStone US4 Type-C USSD 1TB Flash Drive SSD Memory Stick, USB 3.1 Gen 2, 540MB/s External Solid State Disk, Type A & C 2-in -1 Dual Drive |
|---|---|---|
| Brand | Western Digital | KingSpec |
| Capacity | 500GB | 1TB |
| $/GB | $0.2709 | $0.1150 |
| Price | $135.46 | $114.99 |
| Retailer | Newegg | Newegg |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | ssd | ssd |
Price Across Retailers
Western Digital WD_Blue SN580 M.2 2280 500GB PCI-Express 4.0 x4 TLC Internal Solid State Drive (SSD) WDS
KingSpec MemoStone US4 Type-C USSD 1TB Flash Drive SSD Memory Stick, USB 3.1 Gen 2, 540MB/s External Solid State Disk, Type A & C 2-in -1 Dual Drive
Which Should You Buy?
Based on current pricing data, the KingSpec MemoStone US4 Type-C USSD 1TB Flash Drive SSD Memory Stick, USB 3.1 Gen 2, 540MB/s External Solid State Disk, Type A & C 2-in -1 Dual Drive offers better value at $0.1150//GB compared to the Western Digital WD_Blue SN580 M.2 2280 500GB PCI-Express 4.0 x4 TLC Internal Solid State Drive (SSD) WDS at $0.2709//GB — that's roughly 58% less per gigabyte.
The best deal for the KingSpec MemoStone US4 Type-C USSD 1TB Flash Drive SSD Memory Stick, USB 3.1 Gen 2, 540MB/s External Solid State Disk, Type A & C 2-in -1 Dual Drive is $114.99 at Newegg, while the Western Digital WD_Blue SN580 M.2 2280 500GB PCI-Express 4.0 x4 TLC Internal Solid State Drive (SSD) WDS starts at $135.46 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Western Digital WD_Blue SN580 M.2 2280 500GB PCI-Express 4.0 x4 TLC Internal Solid State Drive (SSD) WDS and KingSpec MemoStone US4 Type-C USSD 1TB Flash Drive SSD Memory Stick, USB 3.1 Gen 2, 540MB/s External Solid State Disk, Type A & C 2-in -1 Dual Drive product page for detailed specifications and price history.
Frequently Asked Questions
Is Western Digital WD_Blue SN580 M.2 2280 500GB PCI-Express 4.0 x4 TLC Internal Solid State Drive (SSD) WDS or KingSpec MemoStone US4 Type-C USSD 1TB Flash Drive SSD Memory Stick, USB 3.1 Gen 2, 540MB/s External Solid State Disk, Type A & C 2-in -1 Dual Drive a better deal?
As of September 2026, KingSpec MemoStone US4 Type-C USSD 1TB Flash Drive SSD Memory Stick, USB 3.1 Gen 2, 540MB/s External Solid State Disk, Type A & C 2-in -1 Dual Drive offers better value at $0.1150//GB compared to Western Digital WD_Blue SN580 M.2 2280 500GB PCI-Express 4.0 x4 TLC Internal Solid State Drive (SSD) WDS at $0.2709//GB. That is approximately 58% better value per gigabyte.
What is the price per GB of Western Digital WD_Blue SN580 M.2 2280 500GB PCI-Express 4.0 x4 TLC Internal Solid State Drive (SSD) WDS?
The Western Digital WD_Blue SN580 M.2 2280 500GB PCI-Express 4.0 x4 TLC Internal Solid State Drive (SSD) WDS is currently priced at $0.2709/GB ($135.46 for 500GB) at Newegg.
Where can I buy KingSpec MemoStone US4 Type-C USSD 1TB Flash Drive SSD Memory Stick, USB 3.1 Gen 2, 540MB/s External Solid State Disk, Type A & C 2-in -1 Dual Drive for the cheapest price?
The cheapest price for the KingSpec MemoStone US4 Type-C USSD 1TB Flash Drive SSD Memory Stick, USB 3.1 Gen 2, 540MB/s External Solid State Disk, Type A & C 2-in -1 Dual Drive is $114.99 at Newegg, which works out to $0.1150/GB.