Hardware Spec Index

Caldera CS-1821 Ultra ATX mid tower Case

PC Cases · Caldera · SKU CS1821-ULTRA · Released 2023 · Updated 2026-10-21

Key facts

Benchmark index1,364 (PC Cases scale)
Category rank#21,266
Street price$139
Performance per dollar9.81
Released2023

Specifications

BrandCaldera
ModelCaldera CS-1821 Ultra
TypeATX mid tower
Motherboard supportATX, Micro-ATX, Mini-ITX
Volume54 L
Max GPU length426 mm
Max CPU cooler height175 mm
Radiator supportTop 360 mm, front 360/420 mm, rear 120 mm
Fans included3× 140 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 boardsNot supported

Related guides

AIO Liquid Cooling vs Air Cooling for CPUsChoosing a GPU for 4K Gaming

Similar PC Cases

ModelBenchmarkPriceCompare
Solvane CS-7196 Prime ATX mid tower Case1,435$139Compare
Solvane CS-7722 Core Micro-ATX tower Case1,060$69Compare
Corvane CS-5000 Edge Mini-ITX small form factor Case639$49Compare
Brontix CS-3332 Pro E-ATX full tower Case2,457$279Compare
Brontix CS-9988 XT ATX mid tower Case1,346$109Compare
Corvane CS-5665 XT ATX mid tower Case1,099$79Compare

All PC Cases · JSON

Cite this page: Hardware Spec Index, “Caldera CS-1821 Ultra ATX mid tower Case”, https://vextor7.com/item/1723027 (accessed 2026-10-21).