There is a known USB compatibility issue that Kraken Z63 and Z73 customers are experiencing with select AMD Ryzen-based motherboards. The Product & Engineering teams have isolated the root cause to be an incompatibility between these AMD-based motherboards and the series damping resistors used in the NZXT product design. The USB signals from these motherboards, when connected to the Kraken Z-3s, result in a difference in the D+/D- voltage levels outside of the USB standard, causing the Kraken Z-3 to fail USB enumeration.
Numerous AMD motherboards were tested internally and have found that this does not occur on every motherboard, even of the same model, hence why it was difficult to catch during product development. Intel-based motherboards are not exempt from the possibility of showing the same type of issue. NZXT’s validation team will be expanding the library of motherboards in order to catch compatibility problems like these early on. A change to the Kraken Z-3 PCBA is in place for the series damping resistor, which will be implemented later this month in April 2020.
The NZXT teams apologize for any inconvenience caused and strive to provide the best products with the best customer service. If you are currently experiencing this or similar issues and the motherboard is listed below, the quickest fix is with the NZXT Internal USB Hub. NZXT will provide this to you at no charge. Please submit a ticket here or refer to a local distributor for assistance. NZXT reassures the Kraken Z-3’s are covered by a 6-year warranty.
Please make sure to include a valid proof of purchase of both your Kraken Z and Motherboard. Serial Number validation will be required to receive the complimentary Internal USB Hub.