The Antec Performance Series P20 lineup offers a high-airflow mid-tower case designed for optimal cooling, flexibility, and style. Featuring a metal mesh front panel, these cases come pre-installed with three 120mm PWM fans to ensure superior airflow. They support E-ATX, ATX, Micro-ATX, and ITX motherboards, with ample space for high-end components, including dual 360mm radiators and vertical GPU installation. This series comes in four variants to match your buid:
- P20C: Tempered glass side panel for a sleek showcase. Comes in black or white.
- P20C ARGB: Includes ARGB fans with a built-in controller for customizable lighting effects. Also features a tempered glass side panel for showcasing your components.
- P20CE: Solid side panel for a clean, understated look.

Specifications
Basic Details
Dimensions (DWH)
469 x 220 x 490mm
Form Factor
Mid Tower
Materials
Steel and Plastic
Mainboard Support
E-ATX (up to 330mm), ATX, Micro-ATX, ITX
Front Access & Controls
- Power
- Reset
- 2 x USB 3.0
- 1 x Type-C 3.2 Gen 2
- 1 x MIC
- 1 x HD-AUDIO
- LED (P20C ARGB only)
Side Panel
- P20C (Black/White) and P20C ARGB: 4mm tempered glass
- P20CE: Solid side panel
Drive Bays
Expansion Slots
7 (Full Profile Expansion Slots)
3.5" /2.5"
2 / 2
2.5"
2
Fans
Front
3 x 120mm / 3 x 140mm / 2 x 185mm
Top
3 x 120mm / 2 x 140mm
Power Supply Shroud
2 x 120mm
Rear
1 x 120mm
Included Fan(s)
- P20C (Black): 3 x 120mm PWM fans (in front)
- P20C (White): 3 x 120mm White PWM Fans (in front)
- P20C ARGB: 3 x 120mm ARGB fans (in front)
- P20CE: 3 x 120mm PWM fans (in front)
Radiator Support
Front
120 / 140 / 240 / 280 / 360mm
Top
120 / 140 / 240 / 280 / 360mm
Rear
120mm
Clearance
Max GPU Length
≤ 375mm
Max CPU Cooler Height
≤ 170mm
Max PSU Length (including cable)
≤ 205mm (with HDD)≤ 410mm (without HDD)
Cable Routing Space
≤ 23mm
Miscellaneous
Net Weight
- P20C (Black/White and ARGB): 8.1kg
- P20CE: 7.21kg
Gross Weight
- P20C (Black/White and ARGB): 9.32kg
- P20CE: 8.45kg
Warranty
2 Years
UPC#
- P20C (Black): 0-761345-80103-4
- P20C (White): 0-761345-80108-9
- P20C ARGB: 0-761345-80107-2
- P20CE: 0-761345-80104-1
Accessories
GPU Holder
Yes
GPU Holder
Yes
Cable Routing Grommets
8 pieces
Fixed Cable Ties
3 pieces
Captive Thumb Screws
- Side Panels
- GPU Holder
- PSU Brace
Fan and LED Control Hub
Yes, for P20C ARGB only
Downloads
For additional support, please visit our support page or contact us.