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(SDXC UHS-I & SDIO2.0/1.8V PCIe Reader)

SD card to PCIe Add-on card adapter design for both high speed SD3.0/SDXC/UHS-I cards and SDIO2.0/IO1.8V cards by selecting on-board EEPROMs by slide switch.
Besides, as 1.8V LDO is on board, not only 3.3V but also 1.8V can be applied to SD Card power by jumper.


  • Compliant with PCI Express Base Specification rev 1.1
  • Compliant with SDIO Card Specification 2.0 with I/O signaling 1.8V
  • Compliant with SD Memory Card Specification Ver 3.0
  • Supports Ultra High Speed Type I (UHS-I)
    1. Supports DS/HS/SDR12/SDR25/SDR50/SDR104 operation modes
    2. Supports Ultra High Speed SD Clock (Max. frequency is 200MHz)
  • Supports variable sampling clock for SDR50 and SDR 104 (Tuning command)
  • Supports SD Extended Capacity (SDXC)
  • Support SD High Capacity (SDHC)
  • Compliant with SD Host Controller Standard Specification Version 3.0
  • Compliant with MMC MultiMediaCard Specification Version 4.1
  • Supports MMC Plus and MMC Mobile. (4bit only)
  • Operation current is 800mA for SD UHS-I
  • Integrate 3.3v-to-3.3v/1.8v power switch for SDA3.0 IO power
  • Design two EEPROM for SD3.0/SDXC/UHS-I and SDIO2.0/IO=1.8V mode select, it can select by SW1.
  • Design dual SD card power : 1.8V & 3.3V – JP1 & JP2

SW1: EEPROM Selection
1-2: SD3.0/SDXC/UHS-I
2-3: SDIO2.0/IO Signaling=1.8V


SD Power









External input

JP1.2: VCC
JP1.3: GND



  • To use SD / SDHC/ SDXC Cards on Windows XP/VISTA/7 your system requires install RICOH private driver for more compatibility (download here). Otherwise your SD cards can’t work properly.
  • To use SD / SDHC / SDXC Memory Card Formatting Software, Please download file from SDCARD.org web-site as below:
    Please backup your data before using the formatting program.
  • SDIO 2.0/IO=1.8V mode is for special usage for such as testing SDIO WiFi card with 1.8V I/O signaling.
    So, when SW1=2-3, normal SD card cannot be recognized.
    For normal SD cards of SDIO2.0 or SD2.0 with 3.3V I/O signaling, please purchase MP230.

    System Requirements:

  • PCI-E slot

Unit price: USD 180.
(SDXC UHS-I & SDIO2.0/1.8V PCIe Reader) x1

Documents Download
MP220 Brief  Taiwan  Taiwan 2 Mirror  China Mirror

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