Integrated LED charging status indicator for each USB port Sync & Charge! For 32 devices simultaneously (even when closed) Two carrying handles on the sides. All handles are recessed Integrated ventilation system for perfect temperature adjustment 4 smooth-running castors, 2 with locking brake Integrated locking system (key included) Active ventilation system (max. noise level 31dBA, air performance: 39m³ / h) Supports voltages at 5V, 2.4A at type A connections and up to 12W per connection Compatible Devices: Any iPad or tablet with 11'' size and 12W charging capicity