Shooter4785 wrote:
On my macbook air M1 2020 I just bought a Dell DW316 external dvd drive and since my mac has thunderbolt 3 i use an adapter to get the usb for the external dvd
According to Dell, the drive has a USB 2.0 interface and a power consumption of 8.0 watts.
https://www.dell.com/en-us/shop/dell-usb-slim-dvd-rw-drive-dw316/apd/429-aauq/storage-drives-media
It looks like the computer end of the cable has a USB-A connector.
The USB 2.0 standard allows a device to draw a total of 2.5 watts (500 mA @ 5V) from a computer.
The USB 3.0 standard allows a device to draw a total of 4.5 watts (900 mA @ 5V) from a computer.
This drive couldn't take advantage of USB-C Power Delivery (which allows delivery of up to 100 watts or more),
even IF the MacBook Air was willing to supply power to an accessory in that way.
My guess is that the Dell laptops for which it was designed are providing non-standard amounts of power, whether all the time, or when they see that this specific model of DVD drive is attached.
The MacBook Air and/or Apple adapter are probably supplying the standard amount of power. Assuming that Dell's specifications are correct, the drive may be making clicking sounds because it's not getting all the power it needs.