Mid tower, ARGB, 2.5" / 3.5", 7 PCe, USB 3.0, USB 2.0, HD Audio + Mic, 206.5 x 450.5 x 400.55 mm, Black
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.
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.
| Design |
|---|
| Form factor |
Midi Tower |
| Type |
PC |
| Material |
Acrylonitrile butadiene styrene (ABS), SPCC |
| Product colour |
Black |
| Supported motherboard form factors |
ATX, micro ATX, Mini-ITX |
| Number of 3.5" bays |
2 |
| Number of 2.5" bays |
5 |
| Number of internal 3.5" bays |
1 |
| Number of expansion slots |
7 |
| Side window |
Yes |
| Suitable for |
Gaming |
| Illumination |
Yes |
| Illumination colour |
Multi |
| Illumination location |
Case fans |
| Tempered glass panel(s) |
Yes |
| Anti-dust filter |
Yes |
| Cable management |
Yes |
| On/off button |
Yes |
| Reset button |
Yes |
| LED indicators |
Yes |
| Maximum CPU cooler height |
15.8 cm |
| Maximum graphics card length |
34 cm |
| Power supply |
|---|
| Power supply included |
No |
| Power supply location |
Bottom |
| Supported power supply form factors |
ATX |
| Ports & interfaces |
|---|
| USB 2.0 ports quantity |
2 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity |
1 |
| Combo headphone/mic port |
Yes |
| Cooling |
|---|
| Number of front fans supported (max) |
3 |
| Front fans diameters supported |
120,140 mm |
| Number of rear fans supported (max) |
1 |
| Rear fans diameters supported |
120 mm |
| Number of top fans supported (max) |
2 |
| Top fans diameters supported |
120,140 mm |
| Number of bottom fans supported (max) |
2 |
| Bottom fans diameters supported |
120 mm |
| Liquid cooling capability |
Yes |
| Front radiator sizes supported |
120,240,280,360 mm |
| Rear radiator sizes supported |
120 mm |
| Storage |
|---|
| Supported HDD sizes |
2.5,3.5" |
| HDD/SSD combo cage |
Yes |
| Weight & dimensions |
|---|
| Width |
206.5 mm |
| Depth |
400.6 mm |
| Height |
450.5 mm |
| Material thickness |
0.5 mm |
