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B509A Flow

Mid Tower Case

The AeroCool B509A Flow is a mid-tower case that combines powerful performance with sleek, functional design. Its full mesh front panel maximizes airflow while showcasing your build, and with support for GPUs up to 340mm and liquid coolers up to 360mm, it’s ready for high-performance hardware. Equipped with eight fan slots, magnetic dust filters, and a tempered glass side panel, the B509A Flow keeps your system cool, clean, and looking sharp.

  • Mid-tower case compatible with ATX, m-ATX, and mini-ITX motherboards
  • Full mesh front panel for functional and eye-catching design
  • Supports GPUs up to 340mm, CPU coolers up to 158mm, and liquid coolers up to 360mm
  • 8 total fan slots fit up to five 140mm fans for even greater cooling potential
  • Includes top (magnetic) and bottom dust filters
  • Tempered glass side panel to show components

Where To Buy
B509A Flow
Overview
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Specs

Overview

The AeroCool B509A Flow is a mid-tower case that combines powerful performance with sleek, functional design. Its full mesh front panel maximizes airflow while showcasing your build, and with support for GPUs up to 340mm and liquid coolers up to 360mm, it’s ready for high-performance hardware. Equipped with eight fan slots, magnetic dust filters, and a tempered glass side panel, the B509A Flow keeps your system cool, clean, and looking sharp.

Airflow Meets Style

Designed with a sleek, full mesh front panel, the B509A Flow maximizes airflow while maintaining a bold, modern look. Keep your system cool and performing at its best without compromising on aesthetics.

Optimized Cooling Potential

Equipped with eight total fan slots, including space for up to five 140mm fans, the B509A Flow ensures efficient heat dissipation. Keep your components running at peak performance with superior airflow.

Liquid Cooling Excellence

Support for radiators up to 360mm on the front and 120mm on the rear ensures optimal thermal performance. 

Room for High-Performance Hardware

With support for GPUs up to 340mm, liquid coolers up to 360mm, and CPU coolers up to 158mm, this case is built for powerful setups. Enjoy smooth gaming and seamless multitasking with the hardware you need.

Room for High-Performance Hardware

With support for GPUs up to 340mm, liquid coolers up to 360mm, and CPU coolers up to 158mm, this case is built for powerful setups. Enjoy smooth gaming and seamless multitasking with the hardware you need.

Easy Maintenance Filters

Keep your system clean and efficient with the magnetic top filter and removable bottom filter, designed for effortless cleaning and effective dust prevention.

Showcase Your Build

A sleek tempered glass side panel lets you display your components with pride. Highlight your RGB lighting and premium hardware with a clear, stylish view.

SPECS

Model B509A Flow-G-BK-v1, B509A Flow-G-WT-v1
Case Type Mid Tower
Color Black, White
Body Material SPCC
Front Panel Material ABS, SPCC
Steel Thickness 0.5mm
Motherboards ATX/ Micro ATX/Mini-ITX
Case Dimensions (Internal) 200 x 440 x 350mm (W x H x D)
Case Dimensions (Overall) 206.5 x 450.5 x 400.55mm (W x H x D)
3.5” Drive Bays 2 Max. (1x 3.5” and 1 x 3.5”/2.5”)
2.5” Drive Bays 5 Max. (4 x 2.5” and 1 x 2.5”/3.5”)
Expansion Slots 7
GPU Clearance Supports GPU up to 340mm
CPU Cooler Clearance Supports CPU cooler up to 158mm
Air Cooling Front: 120mm x 3 or 140mm x 3 (Max.)
Top: 120mm x 2 or 140mm x 2 (Max.)
PSU Shroud: 120mm x 2 (Max.)
Rear: 120mm x 1 (Max.)
Liquid Cooling Front: 120/240/280/360mm Radiator (Optional)
Rear: 120mm Radiator (Optional)
I/O Ports USB3.0 x 1 | USB2.0 x 2 | HD Audio & Mic.
Internal Cable Management Depth 21mm
Power Supply ATX PSU (Including cables, up to 185mm) (Optional)
  • Mid-tower case compatible with ATX, m-ATX, and mini-ITX motherboards
  • Full mesh front panel for functional and eye-catching design
  • Supports GPUs up to 340mm, CPU coolers up to 158mm, and liquid coolers up to 360mm
  • 8 total fan slots fit up to five 140mm fans for even greater cooling potential
  • Includes top (magnetic) and bottom dust filters
  • Tempered glass side panel to show components

Download your user manual here.

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