Experience efficiency, durability, and minimalism with the Ant Esports SI12, a premium small-form-factor (SFF) cabinet engineered for professionals and compact PC enthusiasts. Designed using a robust all-metal structure, the SI12 brings unmatched reliability and a timeless industrial aesthetic that blends seamlessly into home and office setups.

With support for Micro-ATX and Mini-ITX motherboards, the SI12 delivers the flexibility you need to build a highly capable system without consuming desk space. Its carefully engineered airflow layout, featuring a pre-installed 120mm rear exhaust fan, ensures stable thermal performance even during demanding workloads.

Despite its small footprint, the SI12 impresses with generous hardware compatibility—supporting GPUs up to 275mm, CPU coolers up to 160mm, and a balanced storage configuration of 1 HDD + 2 SSDs. Whether you’re creating an office workstation, a media server, or a compact gaming rig, the SI12 brings the perfect balance of size, durability, and performance.

Built to be functional, portable, and reliable, the SI12 is the ideal choice for users who want powerful computing in a compact, modern chassis.

• Perfect for office, home, and compact gaming setups

• All-metal design ensures long-lasting durability

• Well-ventilated structure with optimized airflow path

• Clean and modern styling suitable for any environment

• Practical, clutter-free build experience

The Ant Esports SI12 is a compact small-form-factor PC case built with a sturdy metal construction and designed for Micro-ATX and Mini-ITX systems. It features a pre-installed 120mm rear fan for efficient airflow, supports GPUs up to 275mm, CPU coolers up to 160mm, and offers storage for 1 HDD + 2 SSDs. With its minimalist design and essential front I/O—including USB 3.0, dual USB ports, and HD audio—the SI12 is perfect for modern workstations, compact desktops, and space-saving builds.