Idle power draw from non USB-C expansion cards on AMD motherboards


I am planning on buying an AMD framework laptop with 2 x USB-C, 1 x USB-A and 1 x micro SD expansion cards.

Based on Expansion Card Functionality on Framework Laptop 13 (AMD Ryzen™ 7040 Series), I should only plug in USB-C expansion cards in the back.

When plugged in the front, do the USB-A and micro SD cards have any noticeable power draw when the laptop is in use but the expansion cards are empty? i.e. is the idle power draw of the expansion cards expected to be < 0.1W?


Sorry I meant prioritizing USB-C in the back slots over non USB-C, I understand they can be plugged in the front as well.

I tested the power draw of USB-A cards With a USB meter.

Left: 100W PD input, Right: PD output to laptop, Top: 5V input for the meter

1 & 3 USBC, 2 & 4 USBA:
Shutdown: 0.265W
Shutdown + USB-A SSD: 2.045W
Shutdown + USB-C SSD: 0.616W
Suspend: 0.851W
Suspend + USB-A SSD: 3.256W
Suspend + USB-C SSD: 2.024W

1 & 3 USBA, 2 & 4 USBC:
Shutdown: 0.272W
Shutdown + USB-A SSD: 2.020W
Shutdown + USB-C SSD: 0.615W
Suspend: 1.873W
Suspend + USB-A SSD: 4.143W
Suspend + USB-C SSD: 1.951W