Hardware Spec Index

Brontix CS-3921 Ultra ATX dual-chamber mid tower Case

PC Cases · Brontix · SKU CS3921-ULTRA · Released 2026 · Updated 2026-10-24

Key facts

Benchmark index2,262 (PC Cases scale)
Category rank#48,682
Street price$249
Performance per dollar9.08
Released2026

Specifications

BrandBrontix
ModelBrontix CS-3921 Ultra
TypeATX dual-chamber mid tower
Motherboard supportE-ATX (≤ 277 mm), ATX, Micro-ATX, Mini-ITX
Volume66 L
Max GPU length438 mm
Max CPU cooler height180 mm
Radiator supportTop 360 mm, front 360/420 mm, rear 120 mm
Fans included3× 120 mm
Front I/O1× USB 3.2 Gen 2x2 Type-C (20Gbps), 2× USB 3.0, audio
PSU supportATX (up to 220 mm)
Side panelTempered glass
Rear-connector boardsSupported

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Cite this page: Hardware Spec Index, “Brontix CS-3921 Ultra ATX dual-chamber mid tower Case”, https://vextor7.com/item/3494483 (accessed 2026-10-24).