QXP-T32P The Thunderbolt™ 3 Expansion Card enables high-speed data transfer to accelerate everyday tasks and applications. Video editing studios in particular can greatly benefit by being able to smoothly transfer, display and edit 4K videos in real-time. Thunderbolt™ 4 devices can also be used by a NAS with a Thunderbolt™ 3 Expansion Cards when connected using standard Thunderbolt™ 4 certificated cables or passive Thunderbolt™ 3 cables shorter than 0.8 meters.