PCI\VEN_10EC&DEV_525A
RTS525A PCI Express Card Reader driver
PCI\VEN_10EC&DEV_525A is the Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader, 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 ID | PCI\VEN_10EC&DEV_525A |
|---|---|
| Device name | RTS525A PCI Express Card Reader |
| Maker | Realtek Semiconductor Co., Ltd. (PCI vendor ID 10EC) |
| Device type | Card reader |
| Driver guide | Get the Realtek card reader driver |
| Latest official package | PCIE card reader driver for Win10 and Win11 V10.0.26100.21378, 2025/01/15 |
| Known OEM variants | 10 |
PCs and boards that use this chip
Each line is a subsystem ID: the full hardware ID ends in SUBSYS_ plus these eight characters when the RTS525A PCI Express Card Reader is built into that maker's product.
| Full hardware ID ending | Maker | Product |
|---|---|---|
SUBSYS_06D61028 | Dell | Latitude 7275 tablet |
SUBSYS_06DC1028 | Dell | Latitude E7470 |
SUBSYS_06E41028 | Dell | XPS 15 9550 |
SUBSYS_06E61028 | Dell | Latitude 11 5175 2-in-1 |
SUBSYS_07041028 | Dell | XPS 13 9350 |
SUBSYS_09BE1028 | Dell | Latitude 7410 |
SUBSYS_0B101028 | Dell | Precision 3571 |
SUBSYS_0C061028 | Dell | Precision 3580 |
SUBSYS_14AF1462 | Micro-Star International Co., Ltd. [MSI] | MSI Claw A8 |
SUBSYS_224F17AA | Lenovo | ThinkPad X1 Carbon 5th Gen |
If your SUBSYS matches a laptop or board maker in this list, that maker's support page has the version tested for your model.
How to install the driver for RTS525A PCI Express Card Reader
- 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_525A. - Try Windows Update. Settings, Windows Update, Advanced options, Optional updates. Card reader drivers often appear here.
- Check your PC maker. Enter your model or serial number on its support site and look under Card Reader or Chipset.
- 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.
- Restart and check. Insert an SD card and check it opens in File Explorer.
Other Realtek card reader IDs
VEN_10EC&DEV_522ARTS522A PCI Express Card ReaderVEN_10EC&DEV_5249RTS5249 PCI Express Card ReaderVEN_10EC&DEV_524ARTS524A PCI Express Card ReaderVEN_10EC&DEV_5250RTS5250 PCI Express Card ReaderVEN_10EC&DEV_5260RTS5260 PCI Express Card ReaderVEN_10EC&DEV_5261RTS5261 PCIe SD Express Card Reader controllerVEN_10EC&DEV_5264RTS5264 PCIe SD UHS-II & SD Express Card Reader controllerVEN_10EC&DEV_5286RTS5286 PCI Express Card Reader
Device names: The PCI ID Repository, public data. We never host driver files: downloads come from the maker.