Kingspec vs Unionsine Hard Drives & SSDs

Side-by-side price per gigabyte comparison across 11 products.

As of March 2026, Kingspec averages $0.1706/GB across 9 products while Unionsine averages $0.0665/GB across 2 products on BuyPerUnit. Unionsine offers 61% better value per gigabyte for hard drives & ssds.

Kingspec

Avg $/GB$0.1706

Best $/GB$0.1450

Price Range$0.1450 – $0.2577

Products9

Cheapest Product

KingSpec XG7000 2TB NVMe SSD PCIe 4.0-7400MB/s Read Speed, 3D TLC NAND M.2 2280 Internal SSD, Compatible with Gaming PC, Laptop, PS5 Console

2 TB · $289.99 · amazon

Unionsine

Better Value

Avg $/GB$0.0665

Best $/GB$0.0615

Price Range$0.0615 – $0.0715

Products2

Cheapest Product

UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Black)

500 GB · $30.73 · amazon

Top Products Compared

Rank	Brand	Product	Capacity	$/GB	Price	Retailer
1	Kingspec	KingSpec XG7000 2TB NVMe SSD PCIe 4.0-7400MB/s Read Speed, 3D TLC NAND M.2 2280 Internal SSD, Compatible with Gaming PC, Laptop, PS5 Console	2 TB	$0.1450	$289.99	amazon
1	Unionsine	UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Black)	500 GB	$0.0615	$30.73	amazon
2	Kingspec	KingSpec 1TB 2.5 SSD SATA III Internal - 550MB/s Read, 520MB/s Write with 3D NAND Flash, for Laptop & Desktop PC Upgrade	1 TB	$0.1460	$145.97	amazon
2	Unionsine	UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Pink)	500 GB	$0.0715	$35.73	amazon
3	Kingspec	KingSpec 1TB 2.5" SATA SSD, SATA III 6Gb/s Internal Solid State Drive - 3D NAND Flash TLC, Compatible with Desktop/Laptop/All-in-one	1 TB	$0.1460	$145.99	amazon
4	Kingspec	KingSpec OneBoom 1TB SSD 2.5 Inch SATA III Internal Solid State Drive, 550MB/s Read, 3D NAND Flash, SATA3 6Gb/s, for PC Laptop PS4 Upgrade	1 TB	$0.1500	$149.97	amazon
5	Kingspec	KingSpec NX Series 1TB Gen3x4 NVMe M.2 SSD, Up to 3500MB/s, 3D NAND Flash M2 2280 Internal Solid State Drive, for Desktop and Laptop	1 TB	$0.1600	$159.97	amazon

Which Should You Buy?

Based on current pricing data, Unionsine offers better overall value for hard drives & ssds at an average of $0.0665/GB compared to Kingspec's $0.1706/GB — that's roughly 61% less per gigabyte.

Unionsine's best deal is the UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Black) (500 GB) at $0.0615/GB, while Kingspec's cheapest option is the KingSpec XG7000 2TB NVMe SSD PCIe 4.0-7400MB/s Read Speed, 3D TLC NAND M.2 2280 Internal SSD, Compatible with Gaming PC, Laptop, PS5 Console (2 TB) at $0.1450/GB.

However, price per GB isn't everything — consider factors like warranty, performance specs, and your specific capacity needs. Check individual product pages for detailed specifications.

Frequently Asked Questions

Is Kingspec or Unionsine cheaper per GB for hard drives & ssds?

As of March 2026, Unionsine averages $0.0665/GB compared to Kingspec at $0.1706/GB. Unionsine is approximately 61% cheaper per gigabyte on average.

How many Kingspec and Unionsine hard drives & ssds does BuyPerUnit track?

BuyPerUnit currently tracks 9 Kingspec products and 2 Unionsine products in the hard drives & ssds category, all ranked by price per gigabyte.

What is the cheapest Kingspec hard drives & ssd per GB?

The cheapest Kingspec option is the KingSpec XG7000 2TB NVMe SSD PCIe 4.0-7400MB/s Read Speed, 3D TLC NAND M.2 2280 Internal SSD, Compatible with Gaming PC, Laptop, PS5 Console at $0.1450/GB ($289.99 for 2 TB).

What is the cheapest Unionsine hard drives & ssd per GB?

The cheapest Unionsine option is the UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Black) at $0.0615/GB ($30.73 for 500 GB).

Explore More

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