• QNAP recommends installing heatsinks on the M.2 SSD controllers to enhance cooling
eciency and to ensure consistent performance.
• Before installing non-QNAP heatsinks, ensure that they are of the appropriate size and
shape.
1. Power o the device.
2. Disconnect the power cord from the electrical outlet.
3. Disconnect all cables and external attachments.
4. Remove the case cover.
a. Remove the screws.
b. Slide the cover back.
c. Lift the cover o the device.
TS-855eU User Guide
Installation and Conguration 18