Hardware Spec Index

Caldera CS-8421 Ultra ATX mid tower Case

PC Cases · Caldera · SKU CS8421-ULTRA · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index1,782 (PC Cases scale)
Category rank#28,899
Street price$189
Performance per dollar9.43
Released2025

Specifications

BrandCaldera
ModelCaldera CS-8421 Ultra
TypeATX mid tower
Motherboard supportATX, Micro-ATX, Mini-ITX
Volume51 L
Max GPU length400 mm
Max CPU cooler height170 mm
Radiator supportTop 360 mm, front 360/420 mm, rear 120 mm
Fans included4× 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 panelSteel mesh
Rear-connector boardsSupported

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Cite this page: Hardware Spec Index, “Caldera CS-8421 Ultra ATX mid tower Case”, https://vextor7.com/item/14523604 (accessed 2026-10-23).