PC case Thermaltake Divider 300 TG Air Midi Tower Black

The Thermaltake Divider 300 TG Air Midi Tower Black is a mid-tower PC case engineered to prioritize airflow and component compatibility. Its black SPCC steel construction and side window provide a balance of durability and visual access to internal components. The case ships with one pre-installed 120 mm front fan and allows additional 120 mm or 140 mm fans to be installed for improved cooling. With support for Mini-ITX, Micro ATX and ATX motherboards and internal space for multiple drive bays, the Divider 300 TG Air accommodates common gaming and productivity builds.

Advantages

The case design focuses on efficient air circulation thanks to its ventilated front panel and support for multiple fan configurations. A tempered glass side window offers internal visibility while the steel chassis ensures structural stability. Tool-free and standard mounting options for drives and cooling components simplify assembly and upgrades. Compact Midi Tower dimensions deliver roomy component compatibility without occupying excessive desk or floor space.

Suitable for

• Gaming PC builds with standard ATX, Micro ATX or Mini-ITX motherboards
• Enthusiast systems requiring multiple storage drives and enhanced cooling
• Home or office computers where a balance of airflow and compact footprint is needed

Key specifications

• Form factor: Midi Tower
• Material: SPCC steel with tempered glass side window
• Pre-installed fans: 1 × 120 mm (front)
• Supported additional fans: compatible with 120 mm and 140 mm front fans
• Drive bays: 2 × 3.5" bays, 7 × 2.5" bays
• Front I/O: 2 × USB 3.2 Gen 1 (Type-A)
• Supported motherboard sizes: Mini-ITX, Micro ATX, ATX
• Dimensions (W×D×H): 220 mm × 461 mm × 475 mm
• Weight: 8.18 kg
• Color: Black

How to use

Install the motherboard according to its form factor standoffs and secure it to the chassis. Mount storage drives into the dedicated 3.5" or 2.5" bays using the provided brackets or trays. Connect the pre-installed 120 mm front fan to a motherboard fan header or fan hub, and add additional 120 mm or 140 mm fans as needed to optimize airflow. Route power supply and data cables through the case routing channels to maintain unobstructed airflow. Verify front I/O connections for the two USB 3.2 Gen 1 Type-A ports and connect case power and reset switches to the motherboard headers.

Recommendations

For balanced cooling performance, configure a front intake fan setup using the pre-installed 120 mm fan and add one or two additional 120 mm or 140 mm fans to increase positive airflow. Use the available 2.5" bays for SSDs to improve storage performance and place heavier 3.5" drives in the dedicated bays. Maintain clear airflow paths by managing cables behind the motherboard tray and ensure the power supply intake is unobstructed.