Caldera CS-5991 Ultra Mini-ITX small form factor Case
PC Cases · Caldera · SKU CS5991-ULTRA · Released 2022 · Updated 2026-10-19
Key facts
| Benchmark index | 653 (PC Cases scale) |
|---|---|
| Category rank | #38,271 |
| Street price | $49 |
| Performance per dollar | 13.33 |
| Released | 2022 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera CS-5991 Ultra |
| Type | Mini-ITX small form factor |
| Motherboard support | Mini-ITX |
| Volume | 13 L |
| Max GPU length | 337 mm |
| Max CPU cooler height | 70 mm |
| Radiator support | 240 mm (side) |
| Fans included | 1× 120 mm |
| Front I/O | 1× USB 3.2 Gen 2 Type-C, 2× USB 3.0, audio |
| PSU support | SFX / SFX-L |
| Side panel | Tempered glass |
| Rear-connector boards | Not supported |
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Cite this page: Hardware Spec Index, “Caldera CS-5991 Ultra Mini-ITX small form factor Case”, https://vextor7.com/item/11675579 (accessed 2026-10-19).