The SxS PRO X Thunderbolt 3 Single-Slot Card Reader is a compact, professional SxS reader for computers with a Thunderbolt 3 port. It's built for SxS PRO X cards, which offer nearly a 3x increase in maximum read speeds over the previous generation, driving transfers up to 1250 MB/s; it also reads SxS PRO+ E, SxS PRO+ D, SxS PRO+, SxS PRO, SxS-1 and SxS cards natively, with SxS PRO+ media transferring at up to 440 MB/s. SD, SDHC and SDXC cards can be read via separately sold adapters. Pocket-sized with a rugged aluminium enclosure, it's bus powered, and is Thunderbolt 4 and USB4 compatible. Works with macOS 14 or 15 on supported Macs, and Windows 11 computers with Thunderbolt 5 or Thunderbolt 4 ports.