Technical Specification

Product Model

DHI-SSD-S820GS256G

DHI-SSD-S820GS512G

DHI-SSD-S820GS1TB

DHI-SSD-S820GS2TB

Capacity1

256GB

512GB

1TB

2TB

Form Factor

2.5 inch

Port

SATA III 6Gb/s

Net Weight

Max 40 g (0.09 lb)

Product Dimensions

100.20 mm × 69.90 mm × 7.00 mm (3.94″ × 2.75″ × 0.28″)

Packaging Dimensions

140.50 mm × 105.50 mm × 15.50 mm (5.53″ × 4.15″ × 0.61″)

Memory Component

3D NAND

Power Consumption

1500 mW (max)
500 mW (idle)

2200 mW (max)
480 mW (idle)

3400 mW (max)
480 mW (idle)

3400 mW (max)
530 mW (idle)

S.M.A.R.T

Support

TRIM

Support

Garbage Collection

Support

Sequential Read2

Up to 558 MB/s

Up to 550 MB/s

Up to 500 MB/s

Up to 480 MB/s

Sequential Write2

Up to 409 MB/s

Up to 440 MB/s

Up to 450 MB/s

Up to 440 MB/s

4K Random Read2

Up to 76,442

Up to 79,150

Up to 75,570

Up to 66,530

4K Random Write2

Up to 59,776

Up to 62,280

Up to 62,590

Up to 65,120

MTBF

1,500,000 hours

Operating Temperature

0°C to +70°C (+32°F to +158°F)

Storage Temperature

–40°C to +85°C (–40°F to +185°F)

Operating Humidity

5%–95% (non-condensing)

Vibration Resistance

10–1000 Hz, 2.78G

Shock Resistance

1500G/0.5 ms (half sine wave)

TBW

500TB

1000TB

2000TB

4000TB

Warranty3

3-year limited warranty

Reference
Information

1. Capacity calculation: 1GB = 1 billion bytes (IDEMA). Actual available capacity might be reduced (due to formatting, partition, operating system applications, or other necessary usage).

2. The speed data comes from Zhejiang Huayixin Technology Co., Ltd Lab. System configuration of performance test: Intel Z390 Chipset, Intel Core i9-9900KF@3.6GHz, 16GB DDR4; operating system-Windows 10 x64; testing tool-CrystalDiskMark 6.0.0.

3. Warranty period or maximum write amount (TBW), whichever comes first.

4. High performance SLC cache has been enabled.