● Excellent endurance with 3K P/E cycle rating
● Meets SD 5.1 specification
● Supports SD and SPI modes
● Wide-temperature resistance (-40°C to 85°C)
● Supports LDPC ECC error correcting
● Supports wear leveling, End-to-End Data Protection
● Suitable medical devices, point of sales systems, surveillance systems, handheld devices, gaming devices


The ADATA ISDD33K industrial-grade microSD card implements 3D TLC Flash, sports a 3K P/E cycle rating, and read and write speeds of up to 95/70MB per second. The ISDD33K is highly reliable and compatible as well as power efficient, and is ideally suited for applications such as medical devices, surveillance systems, point of sale systems. For excellent durability, the ISDD33K is built to withstand wide-temperature ranges (-40°C to 85°C). The ISDD33K also supports LDPC error correcting code and wear leveling technologies, and features ADATA's proprietary A+ SLC technology for a long product lifespan.


Capacity(TLC) 16GB / 32GB / 64GB / 128GB / 256GB
(A+ SLC) 4GB / 8GB / 16GB / 32GB / 64GB
Dimensions (L x W x H)32 x 24 x 2.1mm
InterfaceSD 5.1 Compliance
Form FactorSD
Operating Voltage3.3V ± 5%
Power Consumption0.95W
Shock Resistance1500G/0.5ms
Operating Humidity5%-95% RH, non-condensing
Flash Type3D TLC
Sequential Read (Max*)95MB/s
Sequential Write (Max*)70MB/s
Speed ClassUHS Speed : Class 1
Speed Class : Class 10
Video Speed Class : V10
Operating Temperature (Operational)-40ºC to 85ºC
Operating Temperature (Non-operational)-25ºC to 85ºC
Vibration Resistance20G (10-2000Hz)
TechnologiesLDPC ECC, Wear Leveling, H/W Power Detector, Flash Protection, A+ SLC Mode

Ordering Info

ADATA Part No.Capacity Description
ISDD33K-016GP16GB Industrial SD 3D TLC, Wide, -40~+85℃
ISDD33K-016GR16GB Industrial SD 3D TLC, Normal, -25~85℃,
ISDD33K-032GP32GB Industrial SD 3D TLC, Wide, -40~+85℃
ISDD33K-032GR32GB Industrial SD 3D TLC, Normal, -25~85℃,
ISDD33K-064GP64GB Industrial SD 3D TLC, Wide, -40~+85℃
ISDD33K-064GR64GB Industrial SD 3D TLC, Normal, -25~85℃,
ISDD33K-128GR128GB Industrial SD 3D TLC, Normal, -25~85℃,
ISDD33K-256GR256GB Industrial SD 3D TLC, Normal, -25~85℃,

Data Sheet

Datasheet - ISDD33K SD Card756KB2020-05-22Datasheet - ISDD33K SD Card