# Please add back warning of Pro 16 connected to USB 2.0 port! **URL:** \ **Category:** Logic 2 Software\ **Created:** [July 27, 2020, 11:57pm UTC](https://discuss.saleae.com/t/please-add-back-warning-of-pro-16-connected-to-usb-2-0-port/642 "2020-07-27T23:57:43Z")\ **Posts on this page:** 1\ **Showing post:** 1
**Author:** ![zliudr](https://avatars.discourse-cdn.com/v4/letter/z/5daacb/32.png) [@zliudr](https://discuss.saleae.com/u/zliudr)\ **Post date:** [July 27, 2020, 11:57pm UTC](https://discuss.saleae.com/t/please-add-back-warning-of-pro-16-connected-to-usb-2-0-port/642/1 "2020-07-27T23:57:43Z")
Pro 16 channels 8-15 not selectable anymore: It worked before in V2.0 software but now only first 8 channels can be selected. I wondered why. So I tried my own analyzer and found out it was due to the analyzer plugged in a USB 2.0 port. Only thing, the actual analyzer was installed somewhere 2 hours away from the junior engineer who installed it so another trip! I bet most of you do in-house tests with these analyzers so don’t think about this issue when you send someone less experienced on-site and only to find out the analyzer isn’t capturing all 16 and this would be why! So please! Add the warning message at software starting! --- _[View the full topic](https://discuss.saleae.com/t/please-add-back-warning-of-pro-16-connected-to-usb-2-0-port/642)._