Thanks for contacting us! We’re sorry that your Samsung Galaxy Note 4 isn’t charging with your USB 3.0 7-Port Hub as expected.
Are you using our 60W hub model or the 25W model? There should be a sticker on the bottom that indicates the model SKU. If you’re using the 25W model, can you please confirm that you’re using one of the charging ports on either end of the hub (port 1 & 7)? If you’re using the 60W model, it won’t matter which port you’re using for charging, as it’s a charging-specialized hub.
In our USB charging tests with both hub models, a Samsung Galaxy Note 4 was able to charge at 875 mA, and it took about 4 hours to fully charge the device. Can you please also try plugging the power adapter for the hub into another power outlet to ensure that it’s receiving full power for USB charging?