Hardware Spec Index

Caldera CS-6391 Ultra ATX mid tower Case

PC Cases · Caldera · SKU CS6391-ULTRA · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index2,060 (PC Cases scale)
Category rank#23,171
Street price$209
Performance per dollar9.86
Released2021

Specifications

BrandCaldera
ModelCaldera CS-6391 Ultra
TypeATX mid tower
Motherboard supportATX, Micro-ATX, Mini-ITX
Volume52 L
Max GPU length423 mm
Max CPU cooler height175 mm
Radiator supportTop 360 mm, front 360/420 mm, rear 120 mm
Fans included3× 120 mm
Front I/O1× USB 3.2 Gen 2 Type-C, 2× USB 3.0, audio
PSU supportATX (up to 220 mm)
Side panelSteel mesh
Rear-connector boardsNot supported

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Cite this page: Hardware Spec Index, “Caldera CS-6391 Ultra ATX mid tower Case”, https://vextor7.com/item/8086404 (accessed 2026-10-20).