The WD_Black SN770M 1TB M.2 2230 NVMe SSD for Gaming Devices and Laptops Compatible with PCIe Gen 4.0, up to 5150MB/s, for Asus ROG Ally, Steam Deck costs $0.2086/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 $0.1160/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 44% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD_Black SN770M 1TB M.2 2230 NVMe SSD for Gaming Devices and Laptops Compatible with PCIe Gen 4.0, up to 5150MB/s, for Asus ROG Ally, Steam Deck 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 | WD_Black SN770M 1TB M.2 2230 NVMe SSD for Gaming Devices and Laptops Compatible with PCIe Gen 4.0, up to 5150MB/s, for Asus ROG Ally, Steam Deck | 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 | 1TB | 1TB |
| $/GB | $0.2086 | $0.1160 |
| Price | $208.63 | $115.99 |
| Retailer | Newegg | Newegg |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | nvme | ssd |
Price Across Retailers
WD_Black SN770M 1TB M.2 2230 NVMe SSD for Gaming Devices and Laptops Compatible with PCIe Gen 4.0, up to 5150MB/s, for Asus ROG Ally, Steam Deck
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 $0.1160//GB compared to the WD_Black SN770M 1TB M.2 2230 NVMe SSD for Gaming Devices and Laptops Compatible with PCIe Gen 4.0, up to 5150MB/s, for Asus ROG Ally, Steam Deck at $0.2086//GB — that's roughly 44% 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 $115.99 at Newegg, while the WD_Black SN770M 1TB M.2 2230 NVMe SSD for Gaming Devices and Laptops Compatible with PCIe Gen 4.0, up to 5150MB/s, for Asus ROG Ally, Steam Deck starts at $208.63 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_Black SN770M 1TB M.2 2230 NVMe SSD for Gaming Devices and Laptops Compatible with PCIe Gen 4.0, up to 5150MB/s, for Asus ROG Ally, Steam Deck 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 WD_Black SN770M 1TB M.2 2230 NVMe SSD for Gaming Devices and Laptops Compatible with PCIe Gen 4.0, up to 5150MB/s, for Asus ROG Ally, Steam Deck 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 August 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 $0.1160//GB compared to WD_Black SN770M 1TB M.2 2230 NVMe SSD for Gaming Devices and Laptops Compatible with PCIe Gen 4.0, up to 5150MB/s, for Asus ROG Ally, Steam Deck at $0.2086//GB. That is approximately 44% better value per gigabyte.
What is the price per GB of WD_Black SN770M 1TB M.2 2230 NVMe SSD for Gaming Devices and Laptops Compatible with PCIe Gen 4.0, up to 5150MB/s, for Asus ROG Ally, Steam Deck?
The WD_Black SN770M 1TB M.2 2230 NVMe SSD for Gaming Devices and Laptops Compatible with PCIe Gen 4.0, up to 5150MB/s, for Asus ROG Ally, Steam Deck is currently priced at $0.2086/GB ($208.63 for 1TB) 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 $115.99 at Newegg, which works out to $0.1160/GB.