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ADATA Ultimate Series: SU740 1TB Internal SATA Solid State Drive

In stock.
Ships from United States.
  • 2TB
  • 1TB
  • 2.5"
  • 1TB
Ultimate SU740 Solid State Drive

The ADATA Ultimate SU740 solid state drive not only brings you increased capacity, but also ups the ante on efficiency and reliability. 

Equipped with 3D NAND memory and intelligent SLC caching, the SU740 reaches read/write speeds of up to 520/450MB per second.

3D NAND - High Capacity, Very Durable

Implementing advanced 3D NAND Flash, the SU740 features higher storage capacities up to 2TB, improved efficiency, and rugged reliability with better cost-performance ratios than ever. 

The SU740 also sports data protection and error correction technologies for a higher TBW (Total Bytes Written) rating.

Fast Transmissions

The SU740 features continuous read/write speeds of up to 520/450MB per second and supports SLC caching. 

It delivers random read/write performance of up to 50K/65K per second, which is 2.5 times faster than traditional hard drives, for seamless file transfers.

Accurate Transmissions

Low-Density-Parity-Check (LDPC) error correcting code has been implemented on the SU740, which helps to reduce data errors and an equal increase in data integrity. It therefore protects your valuable content against corruption.

The SSD Advantage - Robust & Whisper Quiet

Unlike a hard drive, the SU740 has no mechanical parts, making it more resilient against drops and bumps. It also has the advantages of being wide-temperature resistant (0°C ~ 70°C), whisper quiet, and power efficient. Make the switch to SSD and see the difference!

SSD Toolbox and Migration Utility

Every SU740 purchase qualifies for free downloads of ADATA SSD Toolbox and Migration Utility. 

SSD Toolbox allows users to monitor and manage the SU740, with drive status, wear level, and lifespan information. 

The Migration Utility is especially helpful for users making the move from HDD to SSD, as it is designed for simple and quick backup and migration of the contents of entire drives, including the operating system.

Capacity 500GB / 1TB / 2TB
Form Factor 2.5"
Dimensions 100.45 x 69.85 x 7mm / 3.95 x 2.75 x 0.27inch
Weight 47.5g / 1.68oz
Interface SATA 6Gb/s
Sequential Read [Max] Up to 520MB/s
Sequential Write [Max] Up to 450MB/s
4KB Random Read IOPS [Max] Up to 50K
4KB Random Write IOPS [Max] Up to 65K
Operating Temperature 0°C - 70°C
Storage Temperature -40°C - 85°C
Shock Resistance 1500G / 0.5ms
MTBF 2,000,000 hours
Terabytes Written [Max] 400TB
Q: Why is my SSDs capacity less than indicated on the packaging?

A: The difference in capacity is mainly due to the different calculation methods used by your PCs operating system and the SSD. 

SSDs calculate capacity based on the decimal system, 
e.g.: 1KB - 1000 Byte bytes, 1MB - 1000KB, 1GB - 1000MB, 1TB - 1000GB, and so on. 
Your PCs operating system uses the binary system, 
e.g. 1KB x 1024 Byte byte, 1MB x 1024KB, 1GB x 1024MB, 1TB x 1024GB, and so on.

For example, if the packaging shows capacity or 500GB, it is calculated as follows: 500GB x 500 x 1,000MB x 1,000KB x 1,000Byte x 500,000,000,000Byte. 
Your PCs operating system will calculate as follows: 500,000,000,000 Byte/1024KB/1024MB/1024GB, or approximately 465GB.

Q: What is the difference between SATA 3.0 and SATA 2.0?

A: According to the Serial ATA International Organization the SATA 3.0 specification offers transfer speeds up to 6Gbps compared to 3Gbps for SATA 2.0.  Regardless, SATA 2.0 and SATA 3.0 use the same interface and cables.


A Full List of Troubleshooting Q & A is available on the ADATA Consumer Site for more complex questions such as:

Q: Why is my existing SATA SSD not being recognized after installing a new SATA / NVMe M.2 SSDs?

Q: How do you partition a new SSD?

Q: What should I do if my SSD is unrecognizable, undetectable, unreadable, or experiencing other malfunctions?

Q: I am having trouble formatting my SSD

Q: Are ADATA SSD compatible with different operating systems?

Q: Why does my SSD's read/write not match the speed that was advertised? Is there something wrong with the product?

Q: How do I check the health status of my SSD? How do I ensure my SSD can have a long lifespan?

Q: What is a Trim command and which operating systems can it be used with?

Capacity 2TB / 1TB / 512GB / 256GB / 128GB 1TB / 512GB / 256GB 2TB / 1TB / 500GB 120GB 3.84TB / 1.92TB / 960GB / 480GB / 240GB
4KB Random Read IOPS [Max] Up to 85,000 IOPS Up to 65,000 IOPS Up to 50,000 IOPS Up to 40,000 IOPS Up to 40,000 IOPS
4KB Random Write IOPS [Max] Up to 85,000 IOPS Up to 75,000 IOPS Up to 65,000 IOPS Up to 75,000 IOPS Up to 65,000 IOPS
Sequential Read [Max] 550MBps 550MBps 520MBps 520MBps 520MBps
Sequential Write [Max] 500MBps 500MBps 450MBps 450MBps 450MBps
Terabytes Written [Max] 800TB 800TB 400TB 560TB 800TB

Warranty & Returns

Warranty, Returns, And Additional Information


  • Limited Warranty period (parts): 3 years
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