diff --git a/en/hardware-overview.md b/en/hardware-overview.md
index 6309f8a88b7d266f56329eaf7b0ef804e70326e8..114143319d11478a2654228b16809c9601260686 100644
--- a/en/hardware-overview.md
+++ b/en/hardware-overview.md
@@ -2,7 +2,16 @@
 title: Hardware overview
 ---
 
-Our reconstruction of the card10 consists of two boards: The Fundamental Board and the Harmonic Board. They serve different purposes and travelers interact mostly with the Harmonic Board.
+Our reconstruction of the card10 consists of three things:
+- The Fundamental Board
+  - Hosts most sensors, the CPU, the USB-C connection, the power management and connections to the wristband
+- The Harmonic Board
+  - Hosts the user interface, a few sensors, lots of (RGB) LEDs and the battery
+- The wristband
+  - Secures the card10 and provides space for extensions
+
+
+The two boards are connected via a boad to board connector and then screwed together with M2 screws. The wristband is attached to back of the Fundamental Board with two clamps.
 
 ![card10 reconstruction prototype](/media/hardware/low_res_jpg/card10_band_prototype.jpg)