PC Case Thermaltake CTE E660 MX Midi Tower Green

The Thermaltake CTE E660 MX Midi Tower (green) is a PC chassis designed around the CTE form factor for centralized thermal efficiency. It supports standard and Hidden-Connector motherboards from ASUS and MSI, accommodates E-ATX to Mini-ITX boards, and offers three GPU mounting orientations with a pre-configured 400mm PCIe 4.0 riser cable and a floating GPU bracket included. The case provides multiple radiator and fan mounting locations, interchangeable front panels (tempered glass or perforated), extensive storage options, and front I/O with USB and audio ports.

Advantages

The CTE E660 MX combines flexible motherboard compatibility with multiple GPU display options and broad cooling support. Its 90-degree rotated motherboard layout improves airflow by placing the CPU nearer the front intake and the GPU closer to the rear exhaust. Two interchangeable front panels let you choose between visible interior styling or improved airflow, while removable dust filters and a range of mounting points simplify maintenance and customization.

Suitable for

• High-performance gaming PCs with vertical or floating GPU layouts
• Custom water-cooled systems using 360mm or 420mm AIO radiators
• Systems requiring support for Hidden-Connector motherboards (ASUS/MSI)
• Workstations needing multiple storage drives and large GPUs

Key specifications

• Form factor: Midi Tower (CTE form factor)
• Supported motherboards: E-ATX (12" x 10.5"), ATX, Micro ATX, Mini-ITX, plus ASUS/MSI Hidden-Connector models (ROG MAXIMUS Z790 HERO BTF, ASUS TUF GAMING Z790-BTF WIFI, MSI Z790 PROJECT ZERO)
• GPU support: three-way installation (floating, vertical, right-forward) with included 400mm PCIe 4.0 riser cable (16GT/s, up to 64 GB/s bi-directional)
• Cooling support: up to fourteen 120mm or twelve 140mm fans; AIO radiator support up to 420mm (front, rear, M/B side)
• CPU cooler max height: 166 mm
• VGA clearance: up to 443.8 mm (without radiator)
• PSU length max: 220 mm
• Storage bays: up to three 3.5" and three 2.5" (configurable placement)
• Front I/O: 2 × USB 3.0, 1 × USB 3.2 Gen 2 Type-C, HD Audio
• Material: SPCC; Colour: Green

How to use

Install a compatible motherboard (E-ATX/ATX/Micro-ATX/Mini-ITX or supported Hidden-Connector models) onto the rotated mounting tray. Choose the preferred front panel (tempered glass for display or perforated for airflow) and install fans or radiators in the front, rear, bottom or M/B side according to your cooling plan. Use the included 400mm PCIe 4.0 riser cable and floating GPU bracket to position the graphics card floating, vertically, or right-forward. Route power and data cables to the bottom-mounted PSU area and connect front-panel USB and audio to the motherboard headers. Install storage drives in the HDD cage and drive plate as required and attach dust filters to maintain cleanliness.

Recommendations

For optimal thermal performance, install independent intake fans toward the front and dedicated exhaust fans at the rear and top. If using a 420mm AIO, verify clearance at the chosen mounting location and plan cable routing to maintain unobstructed airflow. Use the perforated front panel when maximum airflow is required; switch to the tempered glass panel if showcasing components is the priority.