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Silicon Power A55 1TB SATA III 2.5" Internal SSD

Silicon Power A55 1TB SATA III 2.5" Internal SSD

Best price now

$109.99at Best BuyObserved Nov 3, 2026, 7:22 AM

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Our take on the Silicon Power A55 1TB SATA III 2.5" Internal SSD

The Silicon Power A55 is a 1TB 2.5-inch SATA III solid-state drive rated at up to 500 MB/s read and 450 MB/s write. It is a budget drive meant to replace a hard drive in an older laptop or desktop, not to compete with NVMe drives. The best new price is $109.99 at Best Buy as of November 3, 2026, and only one store lists it new. That is high for a SATA drive of this class, so compare it against other 1TB SATA SSDs before buying.

Best forReviving an older laptop or desktop with a 2.5-inch drive bayCheap bulk storage for photos, documents and gamesBuyers who want a simple drop-in SATA upgradeSecondary drive in a desktop build
Pros
  • 1TB capacity at a low-cost tier
  • SATA III interface works in most laptops and desktops from the last decade
  • Standard 2.5-inch, 7mm-class form factor fits most drive bays
  • Up to 500 MB/s read is a big step up from a spinning hard drive
Cons
  • SATA speeds are far below modern NVMe drives
  • No DRAM cache, which hurts sustained writes
  • 1-year parts warranty is short for an SSD
  • $109.99 is expensive for a 1TB SATA drive in this class
  • Only one store lists it new, so price competition is limited

Silicon Power A55 1TB SATA III 2.5" Internal SSD prices at every store

  • Best BuyNew

    In stock

    $109.99Observed Nov 3, 2026, 7:22 AM
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Silicon Power A55 1TB SATA III 2.5" Internal SSD price history

Lowest price we've seen: $109.99 on Nov 3 at Best Buy. Tracked across 1 store since Nov 3.

What reviewers say

Owner feedback on the A55 line is mixed. People who use it as a secondary or upgrade drive generally find it works and is cheap, while others report failures and slow sustained writes.

Pros
  • Low price per gigabyte
  • Easy drop-in install in older machines
  • Noticeably faster than the hard drive it replaced
Cons
  • Reports of drives failing within months
  • Write speeds drop on large transfers
  • Short warranty and limited support

Specifications

Storage Capacity
1000 gigabytes
Storage Drive Type
SSD
Maximum Read Speed
500 megabytes per second
Maximum Write Speed
450 megabytes per second
Form Factor
2.5 in.
Interface(S)
SATA
Internal Or External
Internal
Product Compatibility
Laptop computers, Desktop computers
Product Width
3 inches
Warranty - Parts
1 year

Questions and answers

Is the Silicon Power A55 1TB worth it at $109.99?
Not at that price. Other 1TB SATA SSDs from major brands often sell for less, and this drive has a 1-year warranty and no DRAM cache. Buy it only if you need this exact model or find it discounted.
Will it fit my laptop?
It is a standard 2.5-inch SATA drive, so it fits most laptops and desktops with a 2.5-inch bay. Very thin laptops that use M.2 slots only will not take it.
How fast is it compared with an NVMe SSD?
Much slower. The A55 tops out around 500 MB/s read and 450 MB/s write over SATA, while NVMe drives commonly reach 3,000 MB/s or more. For everyday use the difference is small; for large file transfers it is noticeable.
Does it come with cloning software or a cable?
The drive ships on its own. Plan on a SATA cable and, for a laptop, a cloning tool or a clean OS install.
When is it cheapest?
The only new listing found is $109.99 at Best Buy as of November 3, 2026. Watch for sales around major shopping events, when SATA SSDs usually drop.
Where is the Silicon Power A55 1TB SATA III 2.5" Internal SSD cheapest?
At Best Buy, for $109.99, as of our latest check.

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