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X852 Dual MSATA SSD Shield

X852 280p1.jpg
X852 280p2.jpg
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X852 Dual MSATA SSD Shield allows you put two MSATA SSD on board, and you can boot from the MSATA SSD drive.

Raspberry Pi 1 Model B+/ 2 Model B / 3 Model B / 3 Model B+
All Raspberry Pi operating systems


  • Ideal storage solution for Raspberry Pi - Dual MSATA SSD Shield
  • Supports up to 4TB MSATA solid-state drive (SSD)
  • Supports 2 MSATA SSD working at the same time
  • Supports operating system installation and booting from your SSD
  • Provides additional 2 USB ports for Raspberry Pi
  • Powers the Raspberry Pi via on-board XH2.54 connector - Only one power adapter required
  • Integrated USB 3.1 Gen1 to SATA 6Gb/s bridge controller
  • Integrated USB 3.1 Gen 1 Hub Controller
  • USB 2.0 connectivity offers plug-and-play functionality on your Raspberry Pi
  • Quick file transfer with high-speed USB3.0 5Gb/s connectivity from a PC or a Mac
  • Specially-made USB3.0 jumper to connect with Raspberry Pi - no additional cables needed
  • LED blue indicator indicates drive status
  • Fully compatible with X735 for intelligent and safe power management


  • Power supply: 5.1Vdc +/-5% , 4A
  • DC jack: 5.5x2.5mm
  • USB socket: USB 3.0 type A
  • Power input / output connector: XH2.54 2-pin
  • PCB Size: 107.5mm x 85mm


  • For use with original power supply unit only
  • WARNING: Do not power your Raspberry Pi via the Pi's 40-pin header and micro-USB socket at the same time.


X852 280p1.jpg
X852 280p2.jpg
X852 280p3.jpg
X852 280p4.jpg
X852 280p5.jpg
X852 1000p6.jpg

Port Definitions

X852 function description.jpg

Package Includes

Product name Quantity
X852 SSD expansion board 1
USB3.0 Jumper 1
USB 3.0 A-Male to A-Male Data cable 1
2-Pin Power Connection Wire 1
Spacer M/F M2.5 x 12mm 4
Screw M2.5 x 6mm 10

Optional Accessories

Power Supply Unit

  • AC 100 - 240V input
  • 5Vdc 4A output
  • W/ EU and US plug
  • 5.5*2.5 DC plug
  • 1.2M cable w/ magnet ring
PA 5V 4A 210p1.jpg

 We are recommended you using this power adapter due to it can provide 5V/4A for your device.

Installation Guide

Push a screw (M2.5*6mm) up through the arrowed mounting hole on the underside of X852 and screw down using a F/F spacer (M2.5*12mm)  
X852 430p5.jpg

a) Insert your mSATA SSD into the mSATA socket.
b) Align the notches on the mSATA SSD with the notches in the mSATA socket, then insert as shown.
c) Screw the mSATA drive into place. 
X852 430p6.jpg

a) Place your Raspberry Pi on top of X852 and screw down(M2.5*6mm screws)
b) Connect the 2-pin power cable from X852 to Raspberry Pi pin header - Pin 4 (5V, Read wire) and Pin 6 (Ground, Blackwire).
c) Insert the USB3.0 jumper 
X852 430p2.jpg

Optional -To use with X735 power management board
a) Unscrew 4 screws on the topside of Raspberry pi
b) Screw the M/F spacer (M2.5*12mm) down until it is hand tight 
c) Plugs the X735 straight into your Raspberry Pi's GPIO header and screw down (M2.5*6mm screws)
d) Connect the 2-pin power connection wire from the 5V out connector on X735 to X852 2-pin power socket

Power adapter must be connected to the X735 only , not X822 and Raspberry Pi

X852 430p3.jpg

Booting from the X8 series storage board

This tutorial explains how to boot your Raspberry Pi 3 from the X8 series (X820 V3.0, X850 V3.0, X822, X852, X860, X870) storage board

Program USB Boot Mode

Before a Raspberry Pi 3 will boot from the X8 series storage board, it needs to be booted from an SD card with a config option to enable USB boot mode.
This will set a bit in the OTP (One Time Programmable) memory in the Raspberry Pi SoC that will enable booting from the X8 series storage board.
Once this bit has been set, the SD card is no longer required.
Note that any change you make to the OTP is permanent and cannot be undone.

You can use any SD card running Raspbian or Raspbian Lite to program the OTP bit.
If you don't have such an SD card then you can install Raspbian or Raspbian Lite in the normal way - see [ installing images | https://www.raspberrypi.org/documentation/installation/installing-images/README.md ]

First, prepare the /boot directory with up to date boot files:

$ sudo apt-get update && sudo apt-get upgrade
The above step is not required if you use the 2017-04-10 release of Raspbian / Raspbian Lite or later.

Then enable USB boot mode with this code:

echo program_usb_boot_mode=1 | sudo tee -a /boot/config.txt 

This adds program_usb_boot_mode=1 to the end of /boot/config.txt.
Reboot the Raspberry Pi with sudo reboot, then check that the OTP has been programmed with:

$ vcgencmd otp_dump | grep 17:

Ensure the output 0x3020000a is shown.
If it is not, then the OTP bit has not been successfully programmed.
If you wish, you can remove the program_usb_boot_mode line from config.txt, so that if you put the SD card in another Raspberry Pi, it won't program USB boot mode.
Make sure there is no blank line at the end of config.txt.
You can edit config.txt using the nano editor using the command:
sudo nano /boot/config.txt , for example.

Prepare the operating system image

Starting with the 2017-04-10 release of Raspbian you can install a working Raspbian system to the X8 series storage board by copying the operating system image directly onto it, in the same way that you would for an SD card.
To perform this step, follow the instructions here, remembering to select the drive that corresponds to your X8 series mass storage device.
Once you have finished imaging your X8 series storage board,
remove the USB data cable from your computer and insert the USB bridge into your Raspberry Pi and X8 series storage board USB ports.

Boot your Raspberry Pi 3 from the USB mass storage device

Powering it up.
After between five and ten seconds the Raspberry Pi should begin booting, and display the rainbow splash screen on an attached screen.


  • A: Should I must change the boot sequence to my HDD/SSD ?
  • Q: No, it's all depends on you.
  • A: How to make a NAS storage from this product?
  • Q: 1. You need to part your partition by using fdisk command and make filesystem by using mkfs command, and create a directory and mount you disk on.
  • 2. install samba software by using apt-get install samba and modify the configuration file /etc/samba/smb.conf and start the samba service.


  • X852, MSATA SSD Shield, NAS, storage, Raspberry pi, mass storage