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AddOn
AddOn 2.5-inch SATA III SSD

AddOn 2.5-inch SATA III SSD

Best price now

$214.00at DirectDialChecked 18 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $214.00 at DirectDial (checked Nov 10, 2026).
  • Checked at 2 stores.

Our take on the AddOn 2.5-inch SATA III SSD

The AddOn 2.5-inch SATA III SSD is a basic internal drive for PCs that still have a SATA bay. It uses the SATA 6 Gb/s interface with rated reads up to 600 MB/s and writes up to 400 MB/s, so it is a clear step up from a spinning hard drive but slower than most current SATA drives on writes. It has no NVMe support, so it will not fit M.2 slots. It suits older desktops and laptops, budget rebuilds and secondary storage, where its shock resistance and simple fit matter more than peak speed.

Best forOlder laptops and desktops with a 2.5-inch SATA bayReviving a slow hard-drive machine on a budgetSecondary storage for games, photos or backupsSimple drop-in upgrades where NVMe is not an option
Pros
  • Standard 2.5-inch SATA fit works in most older PCs
  • Reads up to 600 MB/s, far quicker than a hard drive
  • Shock resistant, which helps in laptops
  • No drivers or setup steps beyond formatting
  • Removable, so it can move between machines
Cons
  • Writes top out around 400 MB/s, slower than many SATA rivals
  • No NVMe support, so it cannot use modern M.2 slots
  • No DRAM or endurance figures published, which matters for heavy writes
  • Little independent testing or owner feedback available

AddOn 2.5-inch SATA III SSD prices at every store

  • DirectDialNew

    In stock

    $214.00Checked 18 h ago
    Visit DirectDial
  • SHI InternationalNew

    In stock

    $249.00Checked 18 h ago
    Visit SHI International

AddOn 2.5-inch SATA III SSD price history

Lowest price we've seen: $214.00 on Nov 10 at DirectDial. Tracked across 2 stores since Nov 10.

Specifications

Type
Hard drive - internal
Use
Internal
Read Speed
600 MBps (external)
Write Speed
400 MB/s
NVMe Support
No
Device Compatibility
PC
Interface
SATA 6 Gb/s
Wireless Connectivity
No
Durability
Shock Resistant
Form Factor
2.5 inch
Removable
Yes

Questions and answers

Will this fit my laptop?
Only if your laptop has a 2.5-inch SATA drive bay. It will not fit an M.2 slot, and many thin modern laptops have no 2.5-inch bay at all.
Is it faster than the hard drive in my old PC?
Yes. SATA SSDs cut boot and load times sharply compared with a spinning drive. Expect reads near 600 MB/s and writes around 400 MB/s.
Does it work with a desktop and a laptop?
Yes, as long as the machine has a standard SATA data and power connection and room for a 2.5-inch drive. Desktop mounts may need a 3.5-inch adapter bracket.
How does it compare with other SATA SSDs?
Its read speed is in line with the SATA ceiling, but its write speed is below many rival SATA drives. Brands like Samsung and Crucial also publish endurance and DRAM details that AddOn does not.
What is in the box?
The drive itself. SATA cables, screws and mounting brackets are usually not included, so check what your case or laptop already has.
Can I use it as an external drive?
Yes, in a 2.5-inch SATA USB enclosure. It is sold as an internal drive, so the enclosure is a separate purchase.
Where is the AddOn 2.5-inch SATA III SSD cheapest?
At DirectDial, for $214.00, as of our latest check.
Where can I buy the AddOn 2.5-inch SATA III SSD?
2 stores we checked sell it, including DirectDial, SHI International.

Stores we've priced the AddOn 2.5-inch SATA III SSD at

  • DirectDial deals and prices
  • SHI International deals and prices

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