Opis Steel case for HiFiBerry Amp2/Amp3 Compatible with: Raspberry Pi 4 & Amp2 EAN/GTIN: 4260439550675 This is our most robust case, made completely from steel. It is ideal for environments that need something rugged or for people that don’t like plastic. Description This is our most robust case, made completely from steel. It is ideal for environments that need something rugged or for people that don’t like plastic. You can add a 25mm fan on the side. As most users prefer a quiet system without a fan (which is totally fine!), the case doesn’t include a fan. Any standard 25x25mm fan should fit. ASSEMBLING THE NEW STEEL CASE STEP 1: PREPARE THE CASE If you’re using the DAC+ ADC, you need to break out the lid that covers the hole for the phone jack. A small pair of pliers will help you removing this. If you’re using a standard DAC+ without the phone jack, you don’t need to do anything. STEP 2: MOUNT THE RASPBERRY PI TO THE BASE While you can use all 4 screws, it will be already robust enough if you fix the Pi with two screws, STEP 3: MOUNT THE SPACERS ONTO THE HIFIBERRY DAC+ STEP 4: MOUNT THE HIFIBERRY DAC+ ONTO THE TOP OF THE CASE STEP 5: SNAP BOTH PARTS TOGETHER This step is a bit tricky. Make sure that top and base are aligned correctly. The HiFiBerry DAC+ should now slide into the 40 pin GPIO header. The 40 pin header and the phone jack on the Pi will ensure a stable connection between both case parts. Note that the case won’t fit for the Pi3 or earlier models