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Small green circuit board M.2 2242 SSD with black chips and gold edge connector

Dogfish Technology

Dogfish Technology 2242-240GB 3D NAND TLC SATA internal SSD

SKU CH-AMTJ-HYSRW

A 240 GB M.2 2242 SATA internal SSD with 3D NAND TLC, up to 550 MB/s read and 450 MB/s write

  • Total capacity240 GB
  • Sequential read speedUp to 550 MB/s
  • Sequential write speedUp to 450 MB/s
  • Form factorM.2 2242
  • Product typeInternal Solid State Drive (SSD)
  • Intended useConsumer

Model 240GB M.2 2242

Show 2 more
  • Fits tight M.2 2242 slots with 22 mm width and 42 mm length
  • Sequential read up to 550 MB/s and write up to 450 MB/s over SATA
  • 3D NAND TLC memory reduces cell interference for enhanced reliability
  • MTBF rated at 1,000,000 hours for long-term dependability
  • Operates from 0 °C to 75 °C and stores from -45 °C to 85 °C

Compact M.2 2242 SATA SSD for Laptops and Desktops

This Dogfish drive uses the 2242 form factor and a SATA III 6 Gb/s interface to deliver 240 GB of storage in a module that measures 22 mm by 42 mm. It is built with 3D NAND TLC flash and an SMI controller, making it suited for consumer laptops and small-form-factor desktops that need a lightweight, low-power upgrade from a mechanical hard disk.

Simple Plug-in Install with Common Pitfalls

The drive slides into any M.2 slot wired for SATA and is secured with a single screw; no cables or brackets are required. Most issues arise when the slot is keyed only for PCIe or when the system BIOS disables the SATA controller, so verify the slot type and enable SATA in firmware before assuming the hardware is faulty.

Steady SATA Speeds Under Continuous Workloads

Sequential throughput settles at up to 550 MB/s read and 450 MB/s write once the SLC cache is filled, and the built-in ECC, wear-levelling and bad-block management keep error rates low during long write sessions. The controller supports DevSleep, TRIM and NCQ, so the drive maintains consistent latency and low power draw even when the operating temperature approaches 75 °C.

How it compares

Measured against everything we stock in Internal NVMe & SATA SSDs, at today’s prices. Recalculated every night.

Price $45.99
Cheaper than about 91% of the 1,994 comparable items (median $180.49).
Total capacity 240 GB
Lower than about 90% of the 1,368 comparable items (median 1 TB).
Sequential read speed Up to 550 MB/s
Lower than about 70% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $191.63 per TB
Pricier than about 58% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameTHREE COLOUR DOGFISH
Product line2242-240 GB
Model name2242-240 GB
Total capacity240 GB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 550 MB/s
Sequential write speedUp to 450 MB/s
Storage
NAND flash type3D NAND
Controller chipSMI
Size & build
Form factorM.2 2242
Overall height42MM
Overall width22 mm
Product depth3.2MM
Product weight0.05g
Environment & compliance
Operating temperature range0 °C to 75 °C
Storage temperature range-45 °C to 85 °C
Operating humidity range0% ~ 95%
More details
Mean time between failures1,000,000 h

Other versions of this model

5 more in the same range

Questions about this item

How do I confirm the 550 MBps read and 450 MBps write speeds are being reached after installation?

Run a sequential benchmark such as CrystalDiskMark; the drive should report up to 550 MBps read and up to 450 MBps write on a SATA III 6 Gb/s port.

What comes in the package and what must I source separately?

The box contains the M.2 2242 240GB SSD only; you will need to supply the motherboard mounting screw and ensure a free M.2 SATA slot.

Which capacity should I choose from the available options?

This listing is the single 240GB variant; other capacities up to 2TB exist in the wider Dogfish range but are separate SKUs.

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