Transcend's 2.5" SATA III SSD550I features the 112-layer 3D NAND flash and the SLC Mode technology, achieving remarkable endurance and sustained speeds equivalent to SLC flash. Its built-in DRAM cache allows faster random speeds while the anti-sulfur resistor guarantees its reliability in harsh conditions. The SSD550I is thoroughly tested in-house, operating stably in wide operating temperatures ranging from -40℃~85℃.
100 mm x 69.85 mm x 6.8 mm (3.94" x 2.75" x 0.27")
Weight
54 g (1.9 oz)
Form Factor
2.5"
Interface
Bus Interface
SATA III 6Gb/s
Storage
Capacity
40 GB/
80 GB/
160 GB/
320 GB/
640 GB/
1280 GB
Flash Type
112-layer 3D NAND flash (SLC mode)
Operating Environment
Operating Voltage
5V±5%
Operating Temperature
Wide Temp.
-40°C (-40°F) ~ 85°C (185°F)
Storage Temperature
-55°C (-67°F) ~ 85°C (185°F)
Humidity
5% ~ 95%
Shock
1500 G, 0.5 ms, 3 axis
Vibration (Operating)
20 G (peak-to-peak), 7 Hz ~ 2,000 Hz (frequency)
Power
Power Consumption (Operation)
3.3 watt(s)
Power Consumption (Sleep)
1.1 watt(s)
Performance
Sequential Read/Write (CrystalDiskMark)
Read: up to 560 MB/s Write: up to 500 MB/s
4K Random Read/Write (IOmeter)
Read: up to 70,000 IOPS Write: up to 85,000 IOPS
Mean Time Between Failures (MTBF)
3,000,000 hour(s)
Terabytes Written (TBW)
up to 4,578 TBW
Drive Writes Per Day (DWPD)
52.3 (3 yrs)
Note
Speed may vary due to host hardware, software, usage, and storage capacity.
The workload used to rate DWPD may be different from your actual workload, which may vary due to host hardware, software, usage, and storage capacity.
Terabytes Written (TBW) expresses the endurance under the highest capacity.
Description
Transcend's 2.5" SATA III SSD550I features the 112-layer 3D NAND flash and the SLC Mode technology, achieving remarkable endurance and sustained speeds equivalent to SLC flash. Its built-in DRAM cache allows faster random speeds while the anti-sulfur resistor guarantees its reliability in harsh conditions. The SSD550I is thoroughly tested in-house, operating stably in wide operating temperatures ranging from -40℃~85℃.
