The enclosure is the "house" for your graphics card, providing power and connectivity.
AKiTiO Node Titan Thunderbolt 3 eGPU Enclosure with 650W PSU external gpu for laptop buy
: Most common. Look for the lightning bolt icon next to the USB-C port. Thunderbolt 5 is the 2026 standard, offering double the bandwidth of Thunderbolt 4. The enclosure is the "house" for your graphics
: A rising alternative in 2026 that provides a direct PCIe connection with less performance loss than Thunderbolt, though it is less "plug-and-play". though it is less "plug-and-play".