This article provides an overview of the differences between the OT-2 and the OT-2R.
Overview of hardware changes
Number of USB ports
Electronics enclosure location
Electronics enclosure status lights
Multichannel pipette leveling features
Ethernet panel mount and external USB
The panel mount has an Ethernet connection instead of USB. However, USB connection is still supported through the use of an external dongle that is provided with each OT-2R.
This provides you with the flexibility to connect to the OT-2R directly via Ethernet connection or through a USB-to-Ethernet dongle.
Additional USB ports
The OT-2R has four USB ports whereas the OT-2 has two.
Doubling the number of USB ports available expands the number of modules that can be connected to the robot without needing to go through a USB hub.
External electronics enclosure
The circuit board enclosure has been moved into an external housing.
This provides easier access to the electronics if any troubleshooting is required.
Five (5) status lights, specifically LEDs, have been added to the side of the electronics enclosure to indicate the following statuses: power, Ethernet, Wi-Fi, heartbeat, and extra.
The addition of status lights provides diagnostic feedback if troubleshooting is necessary.
An overview of what each of these lights indicates can be found in our article on how to read the OT-2R status lights.
8-Channel pipette leveling features
New features have been added to the pipette mount that enable you to rotate the pipette and level it relative to the robot deck. These features include:
Increased leveling range and control which allow you to adjust new screws in the mount to more precisely fine-tune the pipette so that the pipette nozzles are leveled.
New mount design with a shorter bottom pipette attachment screw that is compatible with existing Opentrons pipettes (GEN1 and GEN2).
These refinements enable you to fix gantry or carriage misalignment due to issues with shipping.
More information about these pipette leveling features can be found in our article on leveling 8-Channel pipettes on the OT-2R.
Please see below for additional OT-2R documentation:
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