Data Sheet

4/27/2018 What is ROBOTIS OP3
http://support.robotis.com/en/product/robotis-op3/introduction/what_is_robotis_op3.htm 3/4
Dramatic improvement in computational power
Replacing Mini HDMI with HDMI
User friendly sub-controller(CM-730 → OpenCR)
Improved camera
Spec Comparisons
ROBOTIS OP2 ROBOTIS OP3
Actuator MX-28 XM430-W350
CPU
Intel Atom N2600
@1.6GHz dual core
Intel Core i3 processor
dual core
RAM
2GB DDR3 SODIMM 1066MHz
(user-replaceable)
8GB DDR4 SODIMMs 2133MHz
(32GB maximum)
(user-replaceable)
Storage
half-size mSATA module (32GB)
(user-replaceable)
M.2 SSD module (128GB)
(user-replaceable)
Compatible OS
any Linux release (32-bit)
any Windows release (32-bit)
any Linux release (32-bit/64-bit)
any Windows release (32-bit/64-bit)
Networking
Realtek 10/100/1000 Mbps Ethernet
802.11n (2.4GHz-only)
Intel 10/100/1000 Mbps Ethernet
802.11ac (2.4GHz, 5GHz)
Bluetooth 4.1
Camera Logitech C905 (1600x1200) Logitech C920 (1920x1080)
ROBOTIS OP3 is an affordable, miniature humanoid robot platform with advanced computational power, sophisticated sensors, high payload
capacity, and dynamic motion ability to enable many exciting research and education activities.
Actuator Spec Comparisons
MX-28 XM430-W350
Weight 77g 82g
Dimension 35.6mm x 50.6mm x 35.5mm 28.5mm x 46.5mm x 34.0mm
Gear Ratio 193 : 1 353.5 : 1
Stall Torque 2.5 N.m 4.1 N.m
Stall Current 1.4 A 2.3 A
No Load Speed 55 RPM 46 RPM
Protocol 1.0 Only 1.0, 2.0
XM430 series actuator is easier to assemble and maintain as well as supporting various control algorithms.
Reduced size and increased torque
Metal case with integrated assembly bolt taps
Hollow back case with cable cover
6 operating modes
Current-based torque control
Profile control for smooth motion planning
ROBOTIS-OP3 Specifications