● Durable and reliable MLC Flash
● Complies with SD 3.0 specification
● Supports SD and SPI modes
● Wide-temperature resistance (-40°C to 85°C)
● Supports wear leveling
● Suitable for industrial automation systems (for example: PLC), transportation systems (for example: in-vehicle data recorders), POS devices, surveillance systems and other industrial storage devices


The ADATA IUDD33H industrial-grade microSD card implements MLC Flash to achieve speeds of up to 70/20MB per second. What’s more, it has the advantages of being highly reliable and compatible as well as power efficient. The IUDD33H is ideally suited for applications such as industrial automation, surveillance systems, and point of sale systems. For excellent durability, the IUDD33H is built to withstand wide-temperature ranges (-40°C to 85°C). The IUDD33H also supports wear leveling technologies, and features ADATA's proprietary A+ SLC technology for a long product lifespan.


Capacity4GB / 8GB / 16GB
Dimensions (L x W x H)11 x 15 x 1mm
InterfaceSD 3.0 Compliance
Form FactormicroSD
Operating Voltage3.3V ± 5%
Power Consumption0.5W
Shock Resistance1500G/0.5ms
Operating Humidity5%-95% RH, non-condensing
Flash TypeMLC
Sequential Read (Max*)70MB/s
Sequential Write (Max*)20MB/s
Speed ClassUHS Speed : Class 1
Speed Class : Class 10
Operating Temperature (Operational)-40ºC to 85ºC
Operating Temperature (Non-operational)-25ºC to 85ºC
Vibration Resistance20G (10-2000Hz)
TechnologiesBCH ECC, Wear Leveling, H/W Power Detector, Flash Protection, A+ SLC Mode

Ordering Info

ADATA Part No.Capacity Description
IUDD33H-002GE2GB Industrial SD A+SLC (2D MLC), Wide, -40~+85℃
IUDD33H-002GS2GB Industrial SD A+SLC Normal, -25~85℃,
IUDD33H-004GE4GB Industrial SD A+SLC (2D MLC), Wide, -40~+85℃
IUDD33H-004GG4GB Industrial SD MLC, Normal , -25~85℃,
IUDD33H-004GS4GB Industrial SD A+SLC Normal, -25~85℃,
IUDD33H-004GT4GB Industrial SD MLC, Wide, -40~+85℃
IUDD33H-008GE8GB Industrial SD A+SLC (2D MLC), Wide, -40~+85℃
IUDD33H-008GG8GB Industrial SD MLC, Normal , -25~85℃,
IUDD33H-008GS8GB Industrial SD A+SLC Normal, -25~85℃,
IUDD33H-008GT8GB Industrial SD MLC, Wide, -40~+85℃
IUDD33H-016GG16GB Industrial SD MLC, Normal , -25~85℃,
IUDD33H-016GT16GB Industrial SD MLC, Wide, -40~+85℃

Data Sheet

Datasheet - IUDD33H microSD Card673KB2020-04-22Datasheet - IUDD33H microSD Card