Silencio 450 case in very good condition
Supplied with original box
All accessories as seen

Features:

The side panel and front door come with sound-damping foam mats
Supports two 120mm/800rpm silent case fans
High speed USB 3.0 and SD card reader
Supports high-end graphics cards with the 1st HDD cage removed
Easily maintain dust filter with quick access
Switchable door hinge

Manual https://www.coolermaster.com/catalog/legacy-products/cases/silencio-450/#item1

Specification:

Dimensions (L x W x H) 194 x 451.45 x 494.75 mm / 7.63 x 17.77 x 19.47 inch
Weight 6.2 kg / 13.66 lbs
5.25" Drive Bays 3 (exposed)
3.5" Drive Bays 1 (exposed), 5 (hidden)
2.5" Drive Bays 1 (hidden)
I/O Panel 1x USB 2.0, 1x Mic, 1x Audio (supports HD audio), 1x SD card reader (Class 10)
Expansion Slots 7
Cooling System - Front 120mm x 1, 800rpm silent fan pre-install (converted to 120mm fan x 2 or 140mm fan x 1)
Cooling System - Rear 120mm x 1, 800 RPM silent fan pre-install, or 80/90mm fan x 1 (optional)
Power Supply Support Standard ATX PS2 (optional)
Maximum Compatibility - VGA Card Length 281mm / 11.1 inch (w/ HDD cage), 422mm / 16.6 inch (w/o HDD cage)
Maximum Compatibility - CPU Cooler Height 156.5mm / 6.16 inch
Series Silencio Series