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256GB U100
Solid-State Drive

Performance, Low Power, and Cost Efficient Storage Solution
The SanDisk®U100 SSD delivers high performance, making it the natural fit for a variety of thin and mobile computing platforms such as ultra-thin notebooks and high end tablets.
SanDisk U100 SSD meets challenging OEM size requirements, while delivering fast sequential/random performance and solid long-term data endurance. It is rugged and reliable; light weight and delivers silent operation. The SanDisk U100 SSD’s unique power management features enable OEMs to optimize battery life while still meeting demanding performance requirements evolving in the market.
SanDisk® U100 SSD Supported by Key Innovations and Technology Leadership
The SanDisk’s Advance Flash Management (AFM), there is a large non-volatile SLC write cache technology that enables fast user response, no stuttering, better multi tasking capabilities and significantly improves the drive’s long-term data endurance, ensuring an enhanced user experience.

256GB U100 Sandisk Specifications:


Form Factor
2.5" SATA
SATA 6.0 Gb/s
Formatted Capacity2
NAND Flash Components
Toggle Multi-Level Cell (MLC) NAND Flash
S.M.A.R.T. Attributes
Standard attributes supported
Manufacturer Model Number
RoHS Compliant
Native Command Queuing (NCQ)
Up to 32 simultaneous commands


Height (max)
0.7 cm (0.3 in)
Width (max)
7.0 cm (2.8 in)
Length (max)
10.0 cm (3.9 in)
Weight (typical)
77.0 g (0.17 lbs)


MTBF (Mean Time Between Failures)
4,000,000 hours
Nonrecoverable Read Errors
1 per 1016 bits read
160TB total bytes written (TBW), equal to 88 GB per day for 5 years
Error Correction
Built-in ECC


Random 4K Read
Up to 7,000 IOPS
Random 4K Write
Up to 1,000 IOPS
Sequential Read (Max)
Up to 480 MB/s
Sequential Write (Max)
Up to 380 MB/s

Environmental (Operating)

1000 G max
Ambient Temperature (°F)
32°F to 158°F
Ambient Temperature (°C)
0°C to 70°C
1 .5 Grms
Relative Humidity (non-condensing)
5 ∼ 90%
-304.8 m to 3,048 m (-1,000 ft to 10,000+ ft)

Environmental (Non-Operating)

1500 G max
Ambient Temperature (°F)
-67°F to 185°F
Ambient Temperature (°C)
-55°C to 85°C
Relative Humidity (non-condensing)
5 ∼ 95%
-304.8 m to 12,192 m (-1000 ft to 40,000+ ft)


Read Mode (Max)
Up to 0.045 Watts
Read Mode (Max)
Up to 0.045 Watts


Idle (Typical)
0.0 bels
Seek (Typical)
0.0 bels
  1. 1GB = 1,000,000,000 bytes. Total accessible capacity varies depending upon operating environment (typically 5-10% less). The actual total capacity will depend on your own defined file settings/preferences.
  2. In terms of standard gigabytes, 1GiB ≈ 1.074GB and refers to the actual formatted capacity of shown under Mac OS 10.5 or earlier and Microsoft Windows OS.
  3. Specific application environments such as temperature and duty cycle will affect the overall reliability rates.
Manufacturer provided specifications for SanDisk p/n SDSA5GK-256G


  • (1) SanDisk U100 Solid-State Drive
Sandisk 256GB U100 Solid-State Drive Mfr P/N: SDSA5GK-256G OWC SKU: SNDSDSA5GK256 Read speeds up to 450MB/s 30 Day OWC Fulfilled Limited Warranty
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