The Era 2 has an adjustable internal motherboard plate (referred to as "spine" going forward) which has 3 different settings moving sideways. These settings affect the maximum GPU width and CPU cooler height possible in the case.
| Component restriction | Spine setting 1 | Spine setting 2 | Spine setting 3 | Unit of measurement |
| CPU Cooler height | 70 | 63 | 55 | mm |
| GPU Width (thickness) | 48 | 56 | 63 | mm |
| GPU Height | 137 | 137 | 137 | mm |
| GPU Width (as in max slots, GPU width/thickness further up is also applied to this) | 2.4 | 2.8 | 3.1 | Slots |
As seen in the table above, spine setting 1 allows for a taller air-cooler while reducing max thickness of the GPU, while spine setting 3 allows thicker GPUs but lower CPU coolers. The case comes in spine setting 3, and can be adjusted to setting 1 or 2 by releasing 2 screws in the front, and 2 screws in the rear, displayed below.
Front screws:
Rear screws:
In all settings, the maximum GPU height is 137 mm, and the maximum length is 326 mm.