Open Pluggable Specification (OPS) is a plug-in format for computing modules that can be used to add computing power to flat panel displays. 
The OPS format computing module can run on Intel and ARM-based CPUs, and the operating systems include Microsoft Windows and Google Android.
The main benefit of using OPS in digital signage is that it is very easy to replace the computing module in the event of a failure, thereby reducing downtime and maintenance costs.

Model Number Whole Set Dimension Windows Verison Details
OB-TCOS5441 195(L) x 180(W) x 42(H)mm windows 10pro Intel I5-4430 CPU, Main frequency 3GHz, Main Board Intel H81
Memory 4GB DDR3L (Max. 16GB)
Storage 1 x 128GB SSD, 1 x Mini-PCIE MSATA
With WIFI/Bluetooth module, Ethernet
Interface: USB3.0 x 1; USB2.0 x 5; RJ45 x 1; HDMI x 1; VGA x 1;  3.5mm Line-out x 1; 3.5mm Mic-in x 1; ANT x 2; Power Button x 1; Reset x 1; Power LED x 1; HDD LED x 1
OB-TCOS5441L 194.4(L) x 180(W) x 30(H)mm Windows 7, windows 10 Intel I5-4200 CPU, Main frequency 2.5GHz, Main Board HM86/HM87
Memory 2 x SO-DIMM, DDR3L 1600MHz, DDR3 4GB(Max. 32GB)
Storage M.2 SSD 128GB
With Ethernet
Inteface: USB3.0 x 4; USB2.0 x 2; LAN x 1; VGA x 1; 3.5mm Line-out x 1; 3.5mm Mic-in x 1; ANT x 2; Power Button x 1; Reset x 1;  Single WIFI ethernet x 1
OB-TCOS5641 195(L) x 180(W) x 42(H)mm Windows 10pro Intel I5-6400 CPU, Main frequency 2.7GHz, Mainbaord H310C
Memory 1 x SO-DIMM DDR4 2400MHz (Max  16GB)
Storage 1 x 2.5" SATA HDD/SDD; 1 x M.2 2280 SSD
With WIFI/Bluetooth module, Ethernet
Interface: USB3.0 x 3; USB2.0 x 3; RJ45 x 1; HDMI x 1; DP x 1; 3.5mm Line-out x 1; 3.5mm Mic-in x 1; ANT x 2; Power Button x 1; Reset x 1; Power LED x 1; HDD LED x 1
OB-TCOS5641DG 195(L) x 180(W) x 42(H)mm Windows 10pro Intel I5-6400 CPU, Main frequency 2.7GHz, Mainbaord H310C
Memory 2 x SO-DIMM DDR4 (Max  32GB)
Storage 1 x SATA3.0 22pin; 1 x M.2 2242/2280 SSD
With WIFI/Bluetooth module, Ethernet
Interface: USB3.0 x 6; RJ45 x 1; HDMI x 1; DP x 1; 3.5mm Line-out x 1; 3.5mm Mic-in x 1; ANT x 2; Power Button x 1; Reset x 1; Power LED x 1; HDD LED x 1
OB-TCOS5841U 195(L) x 180(W) x 42(H)mm Windows 10pro Intel I5-8259U CPU, Main frequency 2.3GHz
Memory 2 x SO-DIMM DDR4 (Max  32GB)
Storage 1 x M.2 2280 for PCIE 4x/SATA SSD
With WIFI/Bluetooth module & 1x M.2 3052 for 5G, Ethernet
Interface: USB3.0 x 4; USB2.0 x 3; RJ45 x 1; HDMI x 1; 3.5mm Line-out x 1; 3.5mm Mic-in x 1; ANT x 2; Power Button x 1; Reset x 1; Power LED x 1; HDD LED x 1
OB-TCOS5882 195(L) x 180(W) x 42(H)mm Windows 10pro Intel I5-8400 CPU, 2.8GHz, Main Board Intel H310
Memory 1 x SO-DIMM DDR4 2400MHz( Max. 16GB)
Storage 1 x SATA 22pin HDD; 1 x M.2 2280 for SATA SDD
With WIFI/Bluetooth module, Ethernet
Interface: USB3.0 x 3; USB2.0 x 3; RJ45 x 1; HDMI x 1; DP x 1; 3.5mm Line-out x 1; 3.5mm Mic-in x 1; ANT x 2; Power button x 1;  Reset x 1; Power LED x 1; HDD LED x 1
OB-TCOS5882c 195(L) x 180(W) x 42(H)mm Windows 10pro Intel Coffeelake-S
Memory 2 x SO-DIMM DDR4 2133MHz(Max. 64GB)
Storage 1 x 2.5" SATA HDD/SSD & 1 x M.2 2280 SSD
with WIFI/Bluetooth Module, Ethernet
Interface: Type-C x 1; USB3.0 x 4; USB2.0 x 2; RJ45 x 1; HDMI x 1; DP x 1; VGA x 1; 3.5mm Line-out x 1; 3.5mm Mic-in x 1; ANT x 1; Power Button x 1; Reset x 1; Power LED x 1; HDD LED x 1
OB-TCOS5982 195(L) x 180(W) x 30(H)mm Windows 10pro Intel I5-9400 CPU, Main Board Intel H310C
Memory 1 x SO-DIMM 8GB DDR4 (Max. 16GB)
Storage 1 x 256GB  SSD
with WIFI/Bluetooth module, Ethernet
Interface: USB3.0 x3; USB2.0 x2; RJ45 x 1; HDMI x 1; DP x 1; 3.5mm Line-out x 1; 3.5mm Mic-in x 1; ANT x 1; Power Button x 1; Reset x 1; Power LED x 1; HDD LED x 1
OB-TCOS51082 195(L) x 180(W) x 42(H)mm Windows 10pro Intel I5-10400 CPU, Main frequency 2.9GHz, Main Board Intel H510
Memory 2 x SO-DIMM DDR4 (Max. 32GB)
Storage 1 x M.2 2280 for PCIE 4x/SATA SSD
with WIFI/Bluetooth module, Ethernet
Interface: USB3.0 x3; USB2.0 x3; RJ45 x 1; HDMI x 1; DP x 1; 3.5mm Line-out x 1; 3.5mm Mic-in x 1; ANT x 2; Power Button x 1; Reset x 1; Power LED x 1; HDD LED x 1