PCI\VEN_10EC&DEV_5261

Card reader driver

PCI\VEN_10EC&DEV_5261 is the Realtek Semiconductor Co., Ltd. RTS5261 PCIe SD Express Card Reader controller, a card reader device. Without it the SD card slot does nothing or shows as a Base System Device. Get it from Windows Update or your PC maker first; the chip maker's own package is on realtek.com.

Device details

Hardware IDPCI\VEN_10EC&DEV_5261
Device nameRTS5261 PCIe SD Express Card Reader controller
MakerRealtek Semiconductor Co., Ltd. (PCI vendor ID 10EC)
Device typeCard reader
Driver guideGet the Realtek card reader driver
Latest official packagePCIE card reader driver for Win10 and Win11 V10.0.26100.21378, 2025/01/15

How to install the driver for RTS5261 PCIe SD Express Card Reader controller

  1. Confirm the ID. In Device Manager, right-click the device, open Properties, then Details, and pick Hardware Ids. The first line should start with PCI\VEN_10EC&DEV_5261.
  2. Try Windows Update. Settings, Windows Update, Advanced options, Optional updates. Card reader drivers often appear here.
  3. Check your PC maker. Enter your model or serial number on its support site and look under Card Reader or Chipset.
  4. Use the chip maker's package. PCIE card reader driver for Win10 and Win11 on realtek.com. Our get the realtek card reader driver guide explains which package fits.
  5. Restart and check. Insert an SD card and check it opens in File Explorer.

Other Realtek card reader IDs

Device names: The PCI ID Repository, public data. We never host driver files: downloads come from the maker.