Hardware Spec Index

Caldera CS-3991 Pro ATX mid tower Case

PC Cases · Caldera · SKU CS3991-PRO · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index1,586 (PC Cases scale)
Category rank#14,453
Street price$129
Performance per dollar12.29
Released2021

Specifications

BrandCaldera
ModelCaldera CS-3991 Pro
TypeATX mid tower
Motherboard supportATX, Micro-ATX, Mini-ITX
Volume49 L
Max GPU length409 mm
Max CPU cooler height170 mm
Radiator supportTop 360 mm, front 360/420 mm, rear 120 mm
Fans included3× 140 mm
Front I/O1× USB 3.2 Gen 2 Type-C, 2× USB 3.0, audio
PSU supportATX (up to 220 mm)
Side panelTempered glass
Rear-connector boardsNot supported

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Cite this page: Hardware Spec Index, “Caldera CS-3991 Pro ATX mid tower Case”, https://vextor7.com/item/694122 (accessed 2026-10-20).