Amazon has the Celestron StarSense Automatic Alignment Telescope Accessory (Black, 94005) for $286 with free shipping. List price: $350. Automatically aligns your telescope.

Has good Amazon Reviews.

$286 Shop Now

Amazon has the Targus 4K USB 3.0 Universal Laptop Docking Station (DOCK130USZ) for $108 with free shipping. Features 5 USB 3.0 Super Speed ports and a powered USB 3.0 port, supports one 4K monitor or two HD monitors.

Has good Amazon Reviews.

$108 Shop Now