ADATA Technology 256GB Ultimate SU900 SATA III 2.5" Internal SSD

ADATA Technology 256GB Ultimate SU900 SATA III 2.5" Internal SSD

ADATA Technology 256GB Ultimate SU900 SATA III 2.5" Internal SSD

B&H # ADASU900256 MFR # ASU900SS-256GM-C
ADATA Technology 256GB Ultimate SU900 SATA III 2.5" Internal SSD

ADATA Technology 256GB Ultimate SU900 SATA III 2.5" Internal SSD

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Expected availability: 7-14 business days

Product Highlights

  • 256GB Storage Capacity
  • 2.5"/7mm Form Factor
  • SATA III 6 Gb/s Interface
  • SLC Caching and DRAM Cache Buffer
  • Up to 560 MB/s Read Speeds
  • Up to 520 MB/s Write Speeds
  • SMI Controller
  • 3D MLC NAND Flash Memory
  • High TBW for Extended Drive Longevity
  • Supports S.M.A.R.T. & TRIM Command
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Capacity: 256GB


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256GB 512GB

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  • 1Description

Store and access up to 256GB of your data, be it movies, photos, music, documents, or other files, with the Ultimate SU900 SATA III 2.5" Internal SSD from ADATA Technology. It is equipped with 3D Multi-Level Cell (MLC) NAND flash and an SMI controller that are compatible with your system's 2.5"/7mm drive bay. This SATA III 6 Gb/s compatible SSD provides load and access times for files and programs that are faster than those of a traditional spinning hard drive. In terms of performance, this drive offers read speeds of up to 560 MB/s and write speeds of up to 520 MB/s. In addition to its enhanced data transfer rates, this drive offers a life expectancy of 2.0 million hours MTBF, error correction, SLC caching and a DRAM cache buffer, support for device sleep, a high TBW (Total Bytes Written) for extended drive longevity, and support for S.M.A.R.T, TRIM, and NCQ. There is also free downloadable SSD Toolbox and Migration Utility software available to help with data management and migration. Included is a 2.5mm spacer, allowing this SSD to be used in 2.5"/9.5mm drive bays, while the included 3.5" bracket allows this SSD to be used in 3.5" desktop bays.

General Features

256GB Storage Capacity with 3D MLC NAND Flash
Implementing advanced 3D MLC NAND Flash that provides higher storage density, efficiency, and reliability than traditional 2D NAND, the Ultimate SU900 features a 256GB storage capacity, higher efficiency, and rugged reliability with improved cost-performance ratios. The Ultimate SU900 reaches read/write speeds of 560 MB/s and 520 MB/s to help accelerate PCs.
Intelligent SLC Caching and DRAM Cache Buffer
The intelligent SLC caching algorithm allows NAND Flash memory to operate in single-level cell mode and boosts read/write performance. In addition, with the support of the DRAM cache buffer, read/write performance is improved when compared to SSDs that lack a DRAM cache, or can't use system memory as an SSD buffer for high intensity tasks.
Advanced LDPC ECC Engine
LDPC (low density parity check) error correcting code has been implemented on the SU900, leading to fewer data errors and increased data integrity. It helps protect its valuable contents against corruption to a greater extent than non-ECC SSDs, or even SSDs that use basic BCH error correction. In addition, the SU900 has a program/erase cycle that lasts up to three times longer than standard SSDs, as it incorporates native hard and soft decodes. Together, these help ensure improved durability and a longer SSD lifespan.
High TBW for Improved Durability
Utilizing 3D MLC NAND flash, the SU900 models provide a high TBW (Total Bytes Written) of up to 800TB and random read/write speeds up to 85K/90K IOPS. The SU900's TBW rating indicates a longer-lasting SSD with an MTBF of 2 million hours.
Multiple Data Protection Technologies
The SU900 supports multiple data protection technologies, including internal data shaping, software/hardware write protection options, early weak block retirement, and a global wear leveling algorithm to help ensure data integrity and improve SSD stability.
For Notebooks and Desktops
At just 7mm height, the SU900 fits in most ultrabooks and notebooks or game consoles easily. For placement in 2.5"/9.5mm and 3.5" bays, a 2.5mm spacer and a 3.5" bracket are included, allowing virtually universal compatibility. Users can upgrade quickly to start enjoying a high-speed SSD that uses 3D MLC NAND with a capacity of 256GB.
In the Box
ADATA Technology 256GB Ultimate SU900 SATA III 2.5" Internal SSD
  • 2.5mm Spacer (for 9.5mm Drive Bays)
  • 3.5" Bracket (for 3.5" Drive Bays)
  • Limited 5-Year Warranty
  • Table of Contents
    • 1Description
    Drive Capacity 256.00GB
    Cache Memory Not Specified by Manufacturer
    Pre-Format Not Specified by Manufacturer
    Interface SATA III (6 Gb/s)
    Maximum Read Speed 560 MB/s
    Maximum Write Speed 520 MB/s
    Drive Type SSD
    Form Factor 2.5" (7 mm)
    SSD Specs
    Flash Controller Silicon Motion 2258
    Flash Memory Type  Multi-Level Cell (MLC)
    SMART Support Yes
    TRIM Support Yes
    Reliability / Data Integrity
    ECC Recovery Not Specified by Manufacturer
    Endurance (Total Bytes Written) 200.0 TB
    Mean Time Between Failures (MTBF) 2.0 Million Hours
    Power Draw Not Specified by Manufacturer
    Operating Shock 1500 G / 0.5 ms
    Operating Temperature 32 to 158°F / 0 to 70°C
    Storage Temperature -40 to 185°F / -40 to 85°C
    Certifications RoHS, BSMI, CE, FCC, Kcc, VCCI, as per Manufacturer
    Dimensions (W x H x D) 2.8 x 0.3 x 4.0" / 69.9 x 7.0 x 100.5 mm
    Weight 1.68 oz / 47.5 g
    Packaging Info
    Package Weight 0.3 lb
    Box Dimensions (LxWxH) 5.4 x 5.1 x 1.1"
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