The Echo 11 Thunderbolt 4 Dock expands the ports on a compatible Apple M1 Mac, an Intel Mac with Thunderbolt 3, or a Windows computer with Thunderbolt 4. It connects over a single Thunderbolt 4 cable that also delivers up to 90W of charging power. Three further Thunderbolt 4 ports let you attach Thunderbolt peripherals directly or daisy chain up to five devices. Three USB 3.2 Gen 2 Type-A ports add 10 Gb/s data transfer, and a USB 2.0 Type-A port doubles as a charging port. A Gigabit Ethernet RJ45 LAN jack, an SD card slot reading SD, SDHC and SDXC cards, and a 3.5mm headphone/microphone combo jack round out the connections. It's powered from an AC adapter, has its own power button, and works with both Windows and Mac.