Aqua Computer
Aquacomputer OCTO fan controller for PWM-fan
Best cooling controller for PC enthusiasts building custom thermal management systems.
The Aquacomputer OCTO is a dedicated fan controller designed for precise management of PWM-controlled fans, integrating neatly into a standard 5.25" drive bay. It offers eight inputs for 2-pin (10kOhm) temperature sensors, enabling automated thermal responses for optimal cooling. The controller provides four 3-pin Molex outputs, delivering 5 to 12V DC, and is powered via a standard 4-Pin Molex connector. While it lacks a display, the OCTO serves as a reliable, integrated solution for advanced cooling control, featuring a front panel composed solely of its necessary PCB.
$101.95
Owner Satisfaction
4.7
/ 5
Category Rank
152
/ 3596
#152 in Computer System Cooling Parts
Price vs Category Average
-32%
Below average
Design
15.25
/ x " Drive bay
Who it's for
- Enthusiasts managing complex cooling loops with multiple high-power components
- Power users demanding granular control over system thermal performance
- Custom loop builders prioritizing precise liquid-based thermal management
Who should skip it
- Budget-conscious builders seeking simple, cost-effective fan management solutions
- Users preferring plug-and-play hardware without proprietary software dependencies
- Novice builders looking for a quick, straightforward cooling setup
Performance breakdown
Thermal responsiveness
Eight sensor inputs allow for highly granular, automated cooling adjustments.
Channel capacity
Eight-channel control provides ample headroom for complex multi-fan cooling loops.
Integration versatility
Standard drive bay mounting offers a clean, secure internal installation.
Power delivery
Reliable voltage regulation ensures stable performance across all connected fans.
Interface accessibility
The lack of a physical display necessitates reliance on software management.
Build integrity
Minimalist PCB design prioritizes functional durability over aesthetic flair.
Key Specs
Design
1x 5.25" Drive bay
Number of Outputs
4x 3Pin Molex
Number of Sensors
8x 2Pin (10kOhm)
Output Voltage
5 - 12V DC
Power Supply
4Pin Molex 5V/12V DC
Front Material
only PCB (printed circuit board)
Color
black
Manufacturer
Aquacomputer
Features
- 8-channel PWM fan control
- Integrates into a 5.25" drive bay
- Supports 8 external temperature sensors
- Automates cooling based on sensor readings
- Powered via standard 4-Pin Molex
- Provides 4x 3-Pin fan outputs
What customers say
The Aquacomputer OCTO is highly regarded by enthusiasts for its exceptional reliability and premium build quality. Its primary appeal centers on unparalleled functionality, specifically its capacity to precisely manage up to eight PWM devices. Users value the deep integration with the powerful Aquasuite software, which enables granular customization, complex control loops, and essential monitoring features for maintaining optimal thermal performance. While the device delivers superior control, the high cost and the steep learning curve of the advanced software are noted drawbacks. This controller is best suited for dedicated users prioritizing absolute performance and monitoring over budget simplicity.
Know before you buy
Yes, the OCTO is designed specifically for PWM-controlled fans. While it uses 3-pin headers for the outputs, it manages the PWM signal to ensure precise speed control for compatible fans.
Absolutely. The OCTO features eight inputs for 10kOhm temperature sensors, allowing you to create custom cooling curves that automatically adjust fan speeds based on real-time thermal data.
The OCTO is designed to mount into a standard 5.25-inch drive bay. Note that the front panel is just the exposed PCB, so it is best suited for cases where the drive bay is hidden behind a door or if you prefer a minimalist, industrial aesthetic.
The unit is powered via a standard 4-pin Molex connector from your power supply. It provides an adjustable output voltage ranging from 5V to 12V DC, giving you flexibility in how you balance cooling performance and noise levels.
The OCTO does not have an integrated display on the unit itself. It is designed to be managed through Aquacomputer’s software suite, which provides a comprehensive interface for monitoring sensors and configuring your fan profiles.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$102