diff --git a/README.mdx b/README.mdx
index 934cbf3..8868dbf 100644
--- a/README.mdx
+++ b/README.mdx
@@ -56,3 +56,4 @@ Weight with battery: 189.7 Gram
 # <a name='Where to buy  '>Where to buy</a>
 [BBQ10 keyboard version](https://www.tindie.com/products/zitaotech/hackberrypi-cyberdeck-handheld-with-bbq10-keyboard/)  
 [BBQ20 keyboard version](https://www.tindie.com/products/zitaotech/hackberrypi-cyberdeck-handheld-with-bbq20-keyboard/)
+[BB9900 keyboard version](https://www.tindie.com/products/zitaotech/hackberrypi-cyberdeck-handheld-with-bb9900-kbd/)