Diamond Systems Gemini

Rugged, I/O-Rich SBC and Carrier Board for COM Express Compact Type 6 CPU Modules


GEMINI is a COM Express Compact type 6 carrier board and SBC with PCI/104-Express I/O expansion. Feature-rich GEMINI offers the highest performance in a compact 4.0 x 4.0' / 102 x 102mm size, with its combination of COM Express CPU module and full support for PCIe/104 type 1 connectivity (PCI-104 up to 4 modules, PCIe-104 x1 up to 4 modules, and PCIe/104 x16). Gemini is designed to support a variety of COM Express modules including Bay Trail, Apollo Lake to Core i7 8th generation and Xeon.

Gemini as a complete SBC features the 8th Generation Intel Core i7 8665UE "Whiskey Lake" processor with choice of 16GB or 32GB SODIMM memory and -40 to +85°C operation.

GEMINI as a carrier board provides flexibility in choosing your preferred COM from among dozens of manufacturers around the world. The Gemini carrier offers early access to the latest generation of x86 processors as well as longer product lifecycles by virtue of processor independence.

The COM Express module mounts on the bottom side of the board, with a heat spreader below it serving as a mounting platform and thermal solution. The PCI/104-Express, minicard, and M.2 expansion sockets are on the top side.

The board size maximizes PCB coastline for I/O connectors in the smallest feasible size for the feature set. The combination of latching I/O connectors and a thicker PCB offers superior resistance to shock and vibration.

Gemini offers several options for mass storage. An M.2 2242 socket supports SSD up to 512GB using SLC, MLC, and TLC technology. A SATA connector can be used to connect to an external SSD.

Windows 10 64-bit and Ubuntu Linux 64-bit OS support is available.

Gemini is designed to support a wide range of COM Express Type 6 Compact (95x95mm) modules. The standard configuration works with Core i7 and Xeon processors, enabling maximum utilization of the PCI Express lanes on the modules. With a Xeon COM installed, Gemini provides access to the PCIe x16 lanes on the PCIe/104 connector banks 2 and 3, supporting the use of high end graphics and networking expansion modules.

Gemini expansion options


CPU SpecIntel® Core™ i7 8th Generation Processor 8665UE "Whiskey Lake"
Memory16/32GB SODIMM (WL COM)
3 independent displays:
2x HDMI, max resolution 4096 x 2304 @ 60Hz, 24bpp
1x LVDS, max resolution 1920 x 1200 @ 60Hz, 24bpp
Network2 Gigabit ports: 1 10/100/1000Mbps from COM module and 1 10/100/1000Mbps via I210 Ethernet controller on carrier
StorageStandard SATA, m.2 2242 socket, PCIe / USB MiniCard socket
USB4x USB 2.0 and 2x USB 3.0, optional USB support via PCIe Minicard
Serial:4x multiprotocol RS-232/422/485 through SP336
AudioHDA audio to analog audio converter
Other:8 programmable direction digital I/O, 3.3V logic compatible
CommonTPM module Infineon SLB 9670XQ2.0 on carrier (installed COM may also have TPM)


ExpansionPC/104-EXPRESS: 4 PCIe x1 ports, 1x PCIe x16, 1x USB2.0, and 4-slot PCI support
Carrier board alone: 2.4W
Carrier board + WL COM + 16GB RAM: 10.2W
MechanicalSize: 101.6mm x 101.6 mm / 4.000" x 4.000"
Weight: 281g / 9.9oz (complete assembly with WL COM and heat spreader)
Cooling: Conduction cooling heat spreader on bottom
Conformal CoatingOn request
SoftwareWindows 10 64-bit and Ubuntu Linux 64-bit 
TemperatureTemperature range (operation): -40ºC to +85ºC (-40ºF to +185ºF)
Temperature range (storage): -40ºC to +85ºC (-40ºF to +185ºF)
Final system capability depends on the installed COM and cooling used
Warranty2 Years


Ordering Details


Gemini carrier board, Core / Xeon PCIe configuration, 22mm PCI/104-Express; Contact factory for additional configurations

Gemini SBC, i7-8665U 2133MHz CPU, 16GB RAM, Heat Spreader

Gemini SBC, i7-8665U 2133MHz CPU, 32GB RAM, Heat Spreader

CK-GEM-01 cable kit
Recab UK
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