QTS-Linux combo quad-core NAS TS-x53B Series with OLED panel and two capacitive touch buttons. Featuring PCIe expansion (Install a QM2 card, 10GbE network expansion card, or wireless network card), a USB Type-C QuickAccess port, an SD card slot, and 4K video playback and transcoding, the TS-x53B series is perfect for homes and small offices looking for excellent data storage, backup, sharing and entertainment solutions.