User manual
MIO-5251 User Manual 4
– SD slot: supported by T-P/N, shared the location with mSATA
 High Definition Audio: 
– Intel
®
 High Definition Audio Interface
– High Definition Audio Codec with Realtek proprietary loss-less content pro-
tection technology
– Supports 1 Line-input, 1 Line output, 1 Mic-input
 BIOS
– AMI UEFI 64 Mbit, BIOS for 64 or 32bit is different, default version is for 64bit
– Default setting is Legacy boot, that can be manually changed to UEFI boot. If 
default setting to UEFI is needed, that can be done by T-P/N
1.2.2 OS support
MIO-5251 supports Win8, Win7, WES8, WES7, WEC7, Linux kernel 3.x, VxWorks
6.9.3.3, Android Kit Kat 4.4
Win7 only supports Legacy mode and Win8 for UEFI mode.
For further information about OS support of MIO-5251, please Advantech website: 
http://support.advantech.com.tw/ or contact the technical support center.
1.2.3 Mechanical Specifications
 Dimensions: 146 x 102 mm (5.7 x 4 inches) 
 Height: top side 19mm, PCB 1.6mm, bottom side 6.8mm, total 27.4mm
 Weight: 0.5 kg (reference weight of total package)
1.2.4 Electrical Specifications 
 Power Requirement: Single +12V DC ± 10% power input
 Power Consumption: 
– Max load
* MIO-5251J-U0A1E: 1.16A @ 12V (13.92W)
* MIO-5251E-S3A1E: 0.81A @ 12V (9.72W)
– Idle mode
* MIO-5251J-U0A1E: 0.62A @ 12V (7.44W)
* MIO-5251E-S3A1E: 0.42A @ 12V (5.04W)
 Power Consumption Conditions:
– Test software: 3DMark 2006
– Max. load: Measure the maximum current value which system under maxi- 
mum load (CPU: Top speed, RAM &Graphic: Full loading)
– Idle mode: Measure the current value when system in windows mode and 
without running any program
 RTC Battery:
– Typical Voltage: 3.0 V
– Normal discharge capacity: 210 mAh
1.2.5 Environmental
 Operating temperature: 0 ~ 60°C (32 ~ 140°F) 
 Operating Humidity: 40°C @ 85% RH Non-Condensing
 Storage Temperature: Storage temperature: -40~85°C
 Storage Humidity: Relative humidity: 95% @ 60°C










