What is the correct USB dongle for a DX8 (Generation 2)

[eric_burcham]

Would somebody please provide a link (not a name, a LINK) to the exact place to buy the correct USB dongle for Spektrum DX8 G2 controller?

I am very frustrated after looking that I cannot easily find it. I am new to RC, and I am amazed that on the actual simulator site there isn't a page listing all common controllers, by model, with a link to the correct dongle. I DID find the "Controller" page, but it does not have such a list.

Thanks in advance for any help.