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This 24+4 HDD Open Air Test Bench is a heavy-duty, stackable PC frame designed for crypto mining, Chia farming, and NAS storage. Built from thick SPCC steel with a black sand powder coating, it supports up to 28 3.5" HDDs plus 2 SSDs, optimized cooling with three 120mm fans, and broad compatibility with ATX/EATX motherboards and high-end GPUs like the RTX 3080/3090.

| Material | Metal |
| Color | black |
| Item Dimensions D x W x H | 17.2"D x 11.8"W x 13.4"H |
| Item Weight | 3 Kilograms |
| Hard Disk Form Factor | 3.5 Inches |
| Internal Bays Quantity | 28 |
| Compatible Devices | HuaNan Golden X79/X99, KeNao X99 dual motherboards, Jingyue X79/X99, Supermicro X10DRL-1, X12DPI-N6, Supermicro X9DR3-F dual X79, Inspur M2220, Tyan X99 dual motherboards, and Intel X99-8D dual motherboards. |
| Number of Fans | 6 |
| Total Expansion Slots Quantity | 3 |
| Power Supply Mounting Type | Rear Mount |
| Cooling Method | Air |