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Intel Atom "Apollo Lake" based Embedded Processing Unit (EPU)

The Harrier (VL-EPU-4011) from VersaLogic is an extremely small and rugged SWaP-optimised embedded computer, which has been engineered and tested specifically to meet industry need for smaller, lighter, and lower power embedded systems.

Around the size of a standard playing card and one inch thick, the Harrier is equipped with a powerful dual- or quad-core Intel "Apollo Lake" processor and includes a wide range of onboard I/O including dual Gigabit Ethernet, one USB 3.0 and four USB 2.0 ports and two serial ports. A SATA interface, eMMC Flash options and a microSD socket, provide a range of data storage options. In addition, dual Mini PCIe sockets accommodate plug-in A/D, Wi-Fi modems, GPS receivers, MIL-STD-1553, Ethernet, Firewire, and other mini cards.  

Up to 8 GB of soldered-on Error Correcting Code (ECC) memory is available for high-reliability applications, allowing it to withstand extreme temperature, impact, and vibration.

VersaLogic's 10+ year product life support programs ensure long-term availability, and their 5 year warranty is one of the best in the market.


  • Error-Correcting RAM
    Soldered-on ECC RAM for high-altitude applications
  • Small size (55 x 95 x 27 mm)
    Ideal for SWaP applications
  • TPM 2.0 Security Chip
    Hardware-based security
  • 5th Generation Intel Atom 'Apollo Lake' processor
    Dual or quad core E3900 series


General Board Size 55 x 95 x 27.5 mm (2.17 x 3.74 x 1.08")
Weight 140 grams (4.93 oz.)
Processor Intel Atom E39xx platform. 2 MB L2 cache. Intel 64-bit instructions, Virtualization Technology (VT), AES New Instructions, Secure Key, and Execute Disable Bit.
Battery Connection for 3.0V RTC backup battery
Power Requirements (@ +12V)
Model Idle Typical Max. S3
EPU-4011-EAP-02X-08 4.6 W 5.5 W 6.2 W 1.2 W
EPU-4011-EDP-08X-32 7.3 W 8.8 W 10.2 W 1.2 W
Input Voltage 8V–17V (nominal 12V operation)
System Reset & Hardware Monitors Voltage rail monitoring. Watchdog timer with programmable timeout. Push-button sleep, reset, and power.
Regulatory Compliance RoHS (2011/65/EU)
Environmental Thermal Management Bolt-on heat plate standard. Optional heat sink, fan, heat pipe, and other thermal accessories available.
Operating Temperature
Model Heat Plate** Heat Sink Heat Sink + Fan
All Models -40° to +85°C -40° to +85°C -40° to +85°C
Ranges shown assume 90% CPU utilization. For detailed thermal information, refer to the VL-EPU-4011 Reference Manual.
** Heat plate must be kept below 90°C
Airflow Requirements Refer to the VL-EPU-4011 Reference Manual for detailed airflow requirements.
Storage Temperature -40°C to +85°C.
Operating To 4,570m (15,000 ft.)
Storage To 12,000m. (40,000 ft)
Thermal Shock 5°C/min. over operating temperature
Humidity Less than 95%, noncondensing
Vibration, Sinusoidal Sweep ¤ MIL-STD-202H method MIL-STD-202-204, Condition A: 2g
Vibration, Random ¤ MIL-STD-202H method MIL-STD-202-214, Condition A: 5.35g rms
Mechanical Shock ¤ MIL-STD-202H method MIL-STD-202-213, Condition G: 20g half-sine
Security TPM Trusted Platform Module 2.0 device
Memory System RAM 2 GB or 8 GB of soldered-on ECC DDR3L SDRAM. 1,866 MT/s.
Video General Integrated high-performance video. Intel HD Graphics 505 with 18 Execution Units and Turbo Boost. Supports DirectX 12, OpenGL 4.3, Quick Sync Video, Clear Video HD Technology, Clear Video Technology, VP8, VP9, MPEG2, H.264, H.265, and VC1.
VRAM Up to 2 GB shared DRAM
DisplayPort Interface § Mini DisplayPort++ output. 24-bit. Up to 4096 x 2160 @ 60 Hz.
Supports DisplayPort and HDMI signaling (Video and Audio outputs).
OEM Flat Panel Interface Single-channel LVDS interface. 18/24-bit. Up to 1024 x 768 (60 Hz).
Mass Storage Rotating Drive ¥ One SATA port. Latching SATA connector
Flash / SSD ¥ On-board eMMC MLC Flash drive. 8 or 32 GB.
One microSD socket.
Mini PCIe socket with mSATA support.
Network Interface Ethernet Two AutoDetect 10BaseT/100BaseTX/1000BaseT ports. Latching connector. One port with network boot option.
Device I/O USB ठOne USB 3.0 / 2.0 port and four USB 2.0 host ports
COM 1 / 2 Interface RS-232/422/485 selectable. 16C550 compatible. RS-232 115 Kbps – RS-422/485 460 Kbps max.
Digital I/O Eight TTL I/O Lines 3.3V. Independently configurable.
I2C Single I2C interface
Counter / Timers Three 8254 compatible Programmable Interval Timers (PITs).
Mini PCIe Card Socket Full size Supports Wi-Fi modems, GPS receivers, MIL-STD-1553, Ethernet channels, non-volatile flash data storage, and other plug-in modules. USB, SATA, and PCIe signaling. Autodetect mSATA support.
Half size PCIe and USB 2.0 signaling
Software BIOS Phoenix SecureCore Technology™ UEFI BIOS with OEM enhancements. Field reprogrammable.
Sleep Mode ACPI 3.0. Supports S3 suspend state.
Operating Systems Compatible with most x86 operating systems including Windows, Windows Embedded, Linux, and VxWorks.

† Represents operation at +25°C with +12V supply running Windows 10 with LVDS display, SATA, GbE, COM, and USB keyboard/mouse. Typical power computed as the mean value of Idle and Maximum power specifications. Maximum power measured with 95% CPU utilization.

◊ Derate -1.1°C per 305m (1,000 ft.) above 2,300m (7,500 ft.)

* Extended altitude specifications available upon request

‡ TVS protected port (enhanced ESD protection)

§ Power pins on this port are overload protected

¥ Bootable storage device capability

¤ MIL-STD-202H shock and vibe levels are used to illustrate the extreme ruggedness of this product in general. Testing at higher levels and/or different types of shock or vibration methods can be accommodated per the specific requirements of the application.

Contact a Sarsen Technology Sales Engineer for further information.

Technical documents

Ordering information

Please contact Sarsen Technology for further details on the status of this product.


Associated products