The regular AMP BOX measures 5.8" x 10.1" x 10.7" (WxLxH) and can accommodate a dual-slot graphics card up to 9 inches in length with a maximum TDP of 250 watts. The AMP BOX MINI is smaller still, coming in at 3.9" x 7.2" x 9.1" (WxLxH), and can accommodate cards rated at up to 150 watts. Those specifications mean the standard AMP BOX can handle a GeForce GTX 1080 Ti, while the AMP BOX MINI's internal power supply will provide just enough juice for a GeForce GTX 1060.
Either AMP BOX enclosure connects to your PC with a single Thunderbolt 3 port, and provides up to 40Gbps of bandwidth. In addition, there are four USB 3.0 ports to connect any additional peripherals. If that isn't enough, there's also an additional dedicated Quick Charge 3.0-compliant port for topping off your smartphone in rapid fashion. We should also note that each AMP BOX can also has a slot for an NVMe PCI x4 SSD, although you won't find an Ethernet port (which can be found on many competing eGPU enclosures).
The larger AMP BOX supports SPECTRA Lighting thanks to RGB LEDs, which can of course be controlled using ZOTAC's Spectra utility.
Both the AMP BOX and the AMP BOX MINI are backed by two-year warranties and come with a Thunderbolt 3 cable in the box (which is a good thing considering how expensive high-quality 40Gbps Thunderbolt cables can be these days). Unfortunately, ZOTAC hasn't provided any guidance on pricing or availability for its AMP BOX family.