external hdd 3.0

Hi, I would like to know if 4TB or 6TB external HDDs, intended for data only, when connected via USB 3.0 cable, to older PCs with BIOS and Windows 10, are recognized and at full capacity? If yes, as they are larger than 2TB, is it mandatory that they are GPT? Thanks in advance.

I'm having issues with connectivity for my usb devices to my panasonic UB820 4k player. I was told by panasonic that they support up to 4tb external HD after accidently buying a 5tb hd and trying to connect it. Well I bought a 2tb WD Black external HD and the 4k player still wont recognize it...

I had a 240 SSD in my pc and so it filled up pretty fast. That's why I bought an external HDD. Having moved a few games to it and noticing that they do load slower overall. I obviously knew that was going to happen, but I want to know if something like Star Wars The Old Republic which is taking...

Hello! I want to buy some storage but I don't know which to choose between this Seagate and some external usb 3.0 hdd which I would use connected to a 2.0 usb port. Is the speed difference that high? Thanks!

The problem is started since 2nd Sep,2019. Till then everything is working. Config : Processor Intel I5-4440 Board Gigabyte B85M-D3VA 1.0 Ram Corsair Vengeance 8GB Single Modeule PSU CoolerMaster Masterwatt Lite 500 W 80 PLUS GPU GTX-750 1GB SSD Kingston 240Gb HDD 1TB WD Blue...