Seagate

Seagate Barracuda 120 SSD

Name: Seagate Barracuda 120 SSD (SATA III/560 MB/s Read/540 MB/s Write/Mainstream Desktop Upgrade)
Brand: Seagate
SKU: Barracuda 120

View on seagate.com

Consumercarts is reader-supported. Learn more

Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.

Manufacturer: Seagate Last updated: September 11, 2026

Report an error

Seagate Barracuda 120 SSD Review

The Seagate Barracuda 120 SSD brings Seagate's long-running Barracuda desktop storage branding to SATA solid-state drives, aimed at mainstream desktop upgraders who want a recognizable brand name at a competitive SATA price point.

At up to 560 MB/s read and 540 MB/s write, this drive sits at the top of what SATA III bandwidth allows, delivering consistent everyday performance for general desktop upgrade use. Against the Samsung 870 EVO, covered elsewhere on this site, both deliver essentially equivalent top-tier SATA performance, making the choice largely a matter of brand preference and price at time of purchase. Against the Crucial MX500, also covered elsewhere on this site, all three compete in the same top-tier SATA performance bracket.

Performance and Speed

At up to 560 MB/s read and 540 MB/s write, this drive sits at the top of what SATA III bandwidth allows, delivering consistent everyday performance for general desktop upgrade use.

Comparison to Alternatives

Against the Samsung 870 EVO, covered elsewhere on this site, both deliver essentially equivalent top-tier SATA performance, making the choice largely a matter of brand preference and price at time of purchase. Against the Crucial MX500, also covered elsewhere on this site, all three compete in the same top-tier SATA performance bracket.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Best for

Desktop upgraders who want Seagate's established brand name on a top-tier SATA drive. This drive delivers performance on par with other leading SATA options under familiar branding.

Not for

Not for buyers who specifically need an NVMe-speed upgrade. Any PCIe 4.0 drive covered elsewhere on this site delivers substantially higher speed for a similar or lower price at this point.

Specifications

What these specs mean

Speed Score

5.1/10

How fast this drive is among internal SSDs, rated from its read and write speeds, cache and NAND type.

Identity

Brand	Seagate
Model Number	Barracuda 120
Series	Barracuda 120 SSD

Interface and form

Drive Type	Internal
Bus Interface	SATA III, 2.5-Inch
Form Factor	2.5-inch

Sequential performance

Sequential Read	560 MB/s
Sequential Write	540 MB/s

Controller and cache

DRAM Cache	DRAM

NAND

NAND Type	TLC

Physical and commercial

Warranty	5 Years

FAQs

What are the key specifications of the Seagate Barracuda 120 SSD (SATA III/560 MB/s Read/540 MB/s Write/Mainstream Desktop Upgrade)?

The Seagate Barracuda 120 SSD (SATA III/560 MB/s Read/540 MB/s Write/Mainstream Desktop Upgrade) is a component from Seagate. Key specs: Interface SATA III, 2.5-Inch, Sequential Read 560, Sequential Write 540, NAND Type TLC/QLC, DRAMless, Capacity Options 240GB, 480GB, 1TB, 2TB.

Who is the Seagate Barracuda 120 SSD (SATA III/560 MB/s Read/540 MB/s Write/Mainstream Desktop Upgrade) best suited to?

Best suited to: Desktop upgraders who want Seagate's established brand name on a top-tier SATA drive. This drive delivers performance on par with other leading SATA options under familiar branding.

What are the drawbacks of the Seagate Barracuda 120 SSD (SATA III/560 MB/s Read/540 MB/s Write/Mainstream Desktop Upgrade)?

Not the best fit for: Not for buyers who specifically need an NVMe-speed upgrade. Any PCIe 4.0 drive covered elsewhere on this site delivers substantially higher speed for a similar or lower price at this point.