The Sandisk Optimus 5100 2TB NVMe SSD, PCIe 4.0, M.2 2280 costs $0.1495/GB while the KingSpec MemoStone US4 Type-C USSD 2TB 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 $0.0950/GB. KingSpec MemoStone US4 Type-C USSD 2TB 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 36% better value per gigabyte as of September 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.

Sandisk Optimus 5100 2TB NVMe SSD, PCIe 4.0, M.2 2280 vs KingSpec MemoStone US4 Type-C USSD 2TB 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?

Prices refresh twice daily; the final price appears at the retailer's checkout. We may earn a commission from retailer links, at no cost to you; it never affects rankings.

Specification Comparison

SpecSandisk Optimus 5100 2TB NVMe SSD, PCIe 4.0, M.2 2280KingSpec MemoStone US4 Type-C USSD 2TB Flash Drive SSD Memory Stick, USB 3.1 Gen 2, 540MB/s External Solid State Disk, Type A & C 2-in -1 Dual Drive
BrandSanDiskKingSpec
Capacity2 TB2TB
$/GB$0.1495$0.0950
Price$299.00$189.99
RetailerAmazonNewegg
CategorySSDs & NVMe DrivesSSDs & NVMe Drives
Subcategorynvmessd

Price Across Retailers

Sandisk Optimus 5100 2TB NVMe SSD, PCIe 4.0, M.2 2280

Amazon$0.1495//GB
$299.00Buy

KingSpec MemoStone US4 Type-C USSD 2TB Flash Drive SSD Memory Stick, USB 3.1 Gen 2, 540MB/s External Solid State Disk, Type A & C 2-in -1 Dual Drive

Newegg$0.0950//GB
$189.99Buy

Which Should You Buy?

Based on current pricing data, the KingSpec MemoStone US4 Type-C USSD 2TB 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 $0.0950//GB compared to the Sandisk Optimus 5100 2TB NVMe SSD, PCIe 4.0, M.2 2280 at $0.1495//GB — that's roughly 36% less per gigabyte.

The best deal for the KingSpec MemoStone US4 Type-C USSD 2TB 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 $189.99 at Newegg, while the Sandisk Optimus 5100 2TB NVMe SSD, PCIe 4.0, M.2 2280 starts at $299.00 at Amazon.

However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Sandisk Optimus 5100 2TB NVMe SSD, PCIe 4.0, M.2 2280 and KingSpec MemoStone US4 Type-C USSD 2TB 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 Sandisk Optimus 5100 2TB NVMe SSD, PCIe 4.0, M.2 2280 or KingSpec MemoStone US4 Type-C USSD 2TB 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 2TB 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 $0.0950//GB compared to Sandisk Optimus 5100 2TB NVMe SSD, PCIe 4.0, M.2 2280 at $0.1495//GB. That is approximately 36% better value per gigabyte.

What is the price per GB of Sandisk Optimus 5100 2TB NVMe SSD, PCIe 4.0, M.2 2280?

The Sandisk Optimus 5100 2TB NVMe SSD, PCIe 4.0, M.2 2280 is currently priced at $0.1495/GB ($299.00 for 2 TB) at Amazon.

Where can I buy KingSpec MemoStone US4 Type-C USSD 2TB 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 2TB 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 $189.99 at Newegg, which works out to $0.0950/GB.

Compare With Similar Products