You also get a ROG XG Mobile interface (8PCI express lanes) and a USB Type-C combo port (with USB 3.2 Gen2x2, 20Gbps, DP 1.4 support). This unique combo port works with Asus’ proprietary XG Mobile GPUs. It falls under Asus’ Flow series computers and you can buy an external GPU from Asus and connect it to the Ally. It allows the Ally to run games using a desktop GPU and deliver desktop-quality gaming. These GPUs will cost you as much as the Ally itself so it’s more of an optional upgrade path rather than an absolute purchase for most of us.
The USB Type-C next to it can fast charge using the bundled 65W PD adapter. We tried charging the Ally using third-party 65W chargers while simultaneously playing on it as well and for some reason, it doesn’t detect non-PD chargers but it charges the device. We connected a 120W iQOO charger and Windows doesn’t show that the battery status as charging even though Ally is accepting power. Hence, the ROG Ally will not go into 30W Turbo mode if it’s not connected to its own power brick. This is quite upsetting because now you have to be careful as to which power brick and powerbank you can use for the ROG Ally to accept it and run games on 30W Turbo mode.
If Asus had put a 100W charger things would’ve been better because you’ll spend a lot of time charging this thing now. You can even connect a dock to the Type-C port and use it as a dock. It will also let you connect the Ally to a monitor, keyboard and mouse or a TV with a dongle.
The power button also has an embedded fingerprint scanner which works 9 out of 10 times. It may ask for the password when you boot it after a long hibernation (say overnight).