Portable Desktops This is a short comparison of two excellent Thunderbolt docks for the Macbook Pro. The OWC Thunderbolt 3 dock is currently $360 on Amazon. ^spacegrey The CalDigit TS4 Thunderbolt 4 dock is currently backordered for $380 at B&H Photo. ^spacegrey: Strangely the Space Grey version of the dock is almost $100 more. Thanks, Apple. My top requirement for any dock is that a single cable connects it to the Macbook.