The Silicon Power UD90 M.2 2280 1TB PCI-Express 4.0 x4, NVMe 1.4 3D NAND Internal Solid State Drive (SSD) SP01KGBP44UD9005 costs $0.2181/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 47% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Silicon Power UD90 M.2 2280 1TB PCI-Express 4.0 x4, NVMe 1.4 3D NAND Internal Solid State Drive (SSD) SP01KGBP44UD9005 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 | Silicon Power UD90 M.2 2280 1TB PCI-Express 4.0 x4, NVMe 1.4 3D NAND Internal Solid State Drive (SSD) SP01KGBP44UD9005 | 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 | Silicon Power | KingSpec |
| Capacity | 1TB | 1TB |
| $/GB | $0.2181 | $0.1160 |
| Price | $218.08 | $115.99 |
| Retailer | Newegg | Newegg |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | nvme | ssd |
Price Across Retailers
Silicon Power UD90 M.2 2280 1TB PCI-Express 4.0 x4, NVMe 1.4 3D NAND Internal Solid State Drive (SSD) SP01KGBP44UD9005
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 Silicon Power UD90 M.2 2280 1TB PCI-Express 4.0 x4, NVMe 1.4 3D NAND Internal Solid State Drive (SSD) SP01KGBP44UD9005 at $0.2181//GB — that's roughly 47% 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 Silicon Power UD90 M.2 2280 1TB PCI-Express 4.0 x4, NVMe 1.4 3D NAND Internal Solid State Drive (SSD) SP01KGBP44UD9005 starts at $218.08 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Silicon Power UD90 M.2 2280 1TB PCI-Express 4.0 x4, NVMe 1.4 3D NAND Internal Solid State Drive (SSD) SP01KGBP44UD9005 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 Silicon Power UD90 M.2 2280 1TB PCI-Express 4.0 x4, NVMe 1.4 3D NAND Internal Solid State Drive (SSD) SP01KGBP44UD9005 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 Silicon Power UD90 M.2 2280 1TB PCI-Express 4.0 x4, NVMe 1.4 3D NAND Internal Solid State Drive (SSD) SP01KGBP44UD9005 at $0.2181//GB. That is approximately 47% better value per gigabyte.
What is the price per GB of Silicon Power UD90 M.2 2280 1TB PCI-Express 4.0 x4, NVMe 1.4 3D NAND Internal Solid State Drive (SSD) SP01KGBP44UD9005?
The Silicon Power UD90 M.2 2280 1TB PCI-Express 4.0 x4, NVMe 1.4 3D NAND Internal Solid State Drive (SSD) SP01KGBP44UD9005 is currently priced at $0.2181/GB ($218.08 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.