non-invasive · EEG · shipping
Ganglion Biosensing Board
By OpenBCI
Identity
- Manufacturer
- OpenBCI
- Model number
- OBCI-GAN-4
- Codename
- —
- Aliases
- OpenBCI Ganglion, Ganglion Board
- Generation
- —
- Country of origin
- US
- Released
- —
- Announced
- —
- Discontinued
- —
- Status
- shipping
Classification
- Invasiveness
- non-invasive
- Modalities
- EEG
- Primary modality
- EEG
- Direction
- read
- Categories
- research-grade, developer-kit, education
- Form factor
- modular
- Use cases
- entry-level EEG research, BCI hackathons, undergraduate teaching
- Target users
- neuroscience-researcher, developer, student, educator
Electrodes
- Total channels
- 4
- Recording channels
- 4
- Reference channels
- —
- Electrode type
- dry-passive, wet-gel
- Material
- —
- 10-20 positions
- —
- Requires gel
- No
- Requires saline
- No
- Prep time
- —
- Reusable
- Yes
- Disposable
- No
Auxiliary sensors
- IMU
- Yes
- IMU axes
- 3
- Accelerometer
- Yes
- Gyroscope
- —
- Magnetometer
- —
- PPG (heart rate)
- —
- ECG
- —
- EMG
- —
- EOG
- —
- EDA / GSR
- —
- Temperature
- —
- Respiration
- —
- Microphone
- —
- Eye tracking
- —
Signal acquisition
- Sampling rate
- 200 Hz
- ADC resolution
- 24 bit
- Notch filters
- —
- Onboard artifact rejection
- —
Stimulation
- Capable
- No
Connectivity
- Protocols
- bluetooth-le
- Bluetooth
- —
- Bluetooth profiles
- —
- Concurrent mode
- —
- Encryption (transit)
- —
- Pairing methods
- —
- Cloud sync
- No
- Offline recording
- Yes
Power
- Sources
- non-rechargeable
- Battery life (active)
- —
- Charging port
- —
- Charging time
- —
- Battery replaceable
- Yes
- Notes
- 4×AAA batteries.
Physical
- Weight
- —
- Dimensions
- —
- Materials
- —
- Sizes
- —
- Head circumference
- —
- Operating temp
- —
Software & data
- Mobile app
- No
- Cloud platform
- No
- Offline mode
- Yes
- Subscription required
- No
- Raw data access
- Yes
- Export formats
- —
- LSL support
- Yes
- Data ownership
- user
- Apps
- OpenBCI GUI
SDK & developer access
- Has SDK
- Yes
- Open source
- Yes
- Languages
- python, javascript, matlab, cpp
- Web Bluetooth
- —
- Raw sample access
- Yes
- BCI paradigms
- p300, ssvep, motor-imagery, passive-monitoring
- 3rd-party integrations
- brainflow, lab-streaming-layer, openvibe, mne
- Docs
- docs.openbci.com
Regulatory & clinical
- FDA status
- none
- CE mark
- No
- Certifications
- FCC
- Prescription required
- No
- Pediatric approved
- —
Pricing & availability
- MSRP
- —
- Current price
- —
- Subscription
- —
- Warranty
- —
- Return policy (days)
- —
- Where to buy
- Buy at shop.openbci.com
Editor’s take
In favor
- Cheapest path into the OpenBCI ecosystem
- Raw 24-bit samples; full SDK access
- Same electrode + software stack as the Cyton
Against
- Only 4 channels
- Lower max sample rate than Cyton
- Not expandable
Sources & provenance
Last reviewed