SBC-X300 Single Board Computer

  • Low cost single board computer in a tiny form factor.
  • Highly customizable feature-set enables price / performance optimization.
  • Ready-to-run platform with a broad range of standard interfaces.

Product Highlights

  • Single Board Computer implemented by the combination of a CM-X300 module and a SB-X300 baseboard.
  • Price starting below $99
  • Marvell XScale PXA300 CPU @ 624 MHz, 128 MB SDRAM, 512 MB Flash Disk
  • WLAN / WiFi 802.11b/g interface
  • Bluetooth interface
  • 800 x 600 graphics controller with connectors for LCD panel
  • Video input
  • 3 serial ports with RS232 / RS485 / RS422 driver options
  • Host and slave USB ports including keyboard & mouse support
  • Touchscreen interface
  • Keypad and GPIO connectors
  • Sound - speakers & microphone
  • 100 Mbps Ethernet port
  • SDIO / MMC socket
  • RTC with lithium battery
  • Power supply options: rechargeable battery and charger connector, or 5VDC power supply.
Note: some of above specified features are optional


The SBC-X300 is a small single board computer based on the PXA300 CPU architecture. It is implemented by a CM-X300 module providing most of the functions, including integrated Bluetooth and wireless LAN (WiFi) interfaces. The SB-X300 carrier board providing connectors and several additional functions. The rich feature set of the SBC-X300 is customizable according to the price / performance targets of the user's application.

The SBC-X300 contains an electrical interface and slot for MMC/SDIO extension cards, which may be inserted and secured in the slot with no additional mechanical means, extending the system with capabilities such as a larger solid state disk, GPS or GSM modem.

Power supply options of the SBC-X300 enable its integration in mobile applications powered by a rechargeable battery. Charger and battery management support is provided on-board.

  • SB-X300 doesn't have assembling options. The "CM Option" column specifies the P/N code of CM-X300 required to have the particular feature..
  • "+" means that the feature is always available, regardless of P/N code.

CPU, Memory and Busses

Flash Disk
See Feature List of CM-X300 module
COM-AFull modem controls, RS-232 levels, RJ11 or DB9 connector+
COM-CRTS/CTS, RS 232/422/485 levels, standard 10-pin header+
COM-DRx/TX only, RS-232 & TTL levels, on 100-mil header+
EthernetOne 100 Mbps Ethernet port. DM9000 controller. RJ-45 connector and activity LED'sE
LCD PanelSTN and TFT panel support. 60-pos FPC connector for direct interface to certain TFT panels+
GPIO22 lines, on FPC connector or 100-mil header.+
Host USBTwo host ports, 12 Mbps, front panel connectors. One of ports is shared with Bluetooth interface.+
Slave USBSlave USB-2 (480 Mbps) dedicated port+
Touch PanelPart of Wolfson W9712L controller for resistive panels. Interface to LCD panelAT
Sound I/OPart of Wolfson W9712L controller, microphone (mono), Line input and Speakers (stereo) jacksAT
RTC BatteryReal time clock component on CM-X300, operated from lithium battery on SB-X300+
WiFiWiFi interf, including on-board antenna & connectors, provided by CM-X300W
BluetoothBluetooth interf, including on-board antenna & connectors, provided by CM-X300W
Video Input+

Electrical, Mechanical and Environmental Specifications

Supply VoltageHigh efficiency switched power supply. Support of sleep mode.
3.3 to 4.2 volt input from battery or 5V from wall adapter
Power Consumption2W to 5W in full activity, depending on CPU speed and selected features
Below 50mW in sleep mode
Dimensions87 mm (L) x 68.5 mm (W) x 19.5 mm (H)
Weight48 gram
Operation temp (case)Commercial: 0° to 70° C
Extended: -20° to 70° C
Industrial: -40° to 85° C. Click for availability note
Storage temperature-40° to 85° C
Relative humidity10% to 90% (operation)
05% to 95% (storage)
Shock50G / 20 ms
Vibration20G / 0 - 600 Hz
MTBF> 100,000 hours

Hardware Design Resources

Software Resources



Windows CE


For previous versions of the CM-X300 software packages, please refer to the CM-X300 software archive.

CM-X300 and SBC-X300 Evaluation Kit

Package contents

Technical Support

  • Technical support for 12 months.
  • LCD panel compatibility verification and driver adaptation service.
  • 45-day trial period. Eval Kit will be accepted for refund if the user finds the product not suitable for his needs.


  • CM-X300-D128-C624M-N512-E-AT
  • SB-X300
  • WiFi antenna and cable
  • Serial port cable
  • USB cable and adapter
  • 3.5" 640 x 480 LCD panel with touchscreen
  • Adapters & cables for generic LCD panel interface
  • Keypad and cable
  • 5V power supply

Product status: Mature

The CompuLab part number specifies all options available for a particular product.
Note: The SB-X300 base-board must contain a CM-X300 module for the implementation of a self-contained SBC. Options specified on this page refer to the SB-X300 only.
P/N template: SB-X300

Minimal Configuration

Minimal configuration P/N: SB-X300
1K-units price
10K-units price

Optional Features

FeatureOptionsP/N codeAdd($)
Temperature rangeCommercial
Cables, connectors and accessories click here
  • Prices are specified in U.S. Dollars. Prices are periodically updated according to variations in component costs. Prices are subject to change without advance notice.

Small Quantity Orders

Pricing is specified for 1000-unit orders. In order to calculate the price for another quantity, multiply the unit price (with selected options) by the factor listed in the table below:

10K 0.9
1K 1.0