This is new in box and has never been used. 

Case is sealed by the manufacturer.

The UPC/barcode has been removed for rebate. 

This item was stored in a pet and smoke free environment.

If you have any questions, please let me know.

Model

Brand	Thermaltake
Series	Core G21 Tempered Glass Edition
Model	CA-1I4-00M1WN-00

Details

Type	ATX Mid Tower
Color	Black
Case Material	SPCC / Tempered Glass
With Power Supply	No
Power Supply Mounted	Bottom with Full Length PSU Cover
Motherboard Compatibility	Mini-ITX (6.7" x 6.7") / Micro ATX (9.6" x 9.6") / ATX (12" x 9.6")
Side Panel Window	Dual-Tempered Glass Two-Toned Tinted 4mm Thick Panels

Expansion

External 3.5" Drive Bays	2 x 3.5" or 2 x 2.5"
Internal 2.5" Drive Bays	2 x 2.5"
Expansion Slots	7

Front Panel Ports

Front Ports	2 x USB 3.0 / 1 x Headphone / 1 x Mic Ports (TOP)

Cooling System

Fan Options	Front: 3 x 120mm / 2 x 140mm fan Top: 1 x 120mm / 1 x 140mm fan Rear: 1 x 120mm fan (included) Bottom: 1 x 120mm fan
Radiator Options	Front: 1 x 120mm or 1 x 240mm or 1 x 360mm 1 x 140mm or 1 x 280mm Rear: 1 x 120mm

Dimensions & Weight

Max GPU Length	410 mm
Max CPU Cooler Height	160 mm
Max PSU Length	220 mm
Dimensions (H x W x D)	18.50" x 8.20" x 18.70"
Weight	17.75 lbs.

Additional Info

Features	Left and Right 4mm Thick Tempered Glass Window Design Fully Modular Concept Power Supply Cover For A Clean Build Excellent Expandability Superior Cooling Capability