The X735 V3.0 is the latest updated version from X735 V2.5, which release in March 2022. There maybe mixed stock of X735 V2.5 &V3.0 in stock, please note.

Some new features of X735 V3.0:

• Support width voltage DC 6V-30V input (only DC port), you still can use 5V PSU via Type-C or Micro USB port. The DC connector is changed from DC5525 to DC5521.
• Replace the L-SW jumper with FAN FS jumper to control the PWM fan; (Because we found that there are some beginners who don't know how to install the script to make the PWM fan run, or the installation script doesn't support 3rd party OS, at this time, you just need to remove the FAN FS jumper, the PWM fan will run at full speed.)
• The 4-PIN self-locking latching switch interface has been removed and replaced by a 5V output connector ;

Important Note: This script guide is only for X735 V2.5 shield based on RASPBIAN. (Not tested on openmediavault or other third party OS.)

User Manual: wiki.geekworm.com/X735

There are 5 version of X735: V1.0, V2.0, V2.1, V2.5, V3.0; Version 3.0(Updated and release on March 27th 2022):

Update History:

1. On March 2022, we release the final version X735 V3.0 which support width voltage DC 6V-30V input (only DC port), Replace the L-SW jumper with FAN FS jumper to control the PWM fan, and the 4-PIN self-locking latching switch interface has been removed and replaced by a 5V output connector.
2. On March 15th, 2021, we release the new version X735 V2.5 which use the silent PWM cooling fan, and support fan speed is control by script, support read fan speed, and we provide sample python code.
3. On November 8th, 2019, we release the newest version X735 V2.1, change jumper 'FAN_HS' to 'AUTO ON' function; as we found 'AUTO ON' function is more useful to user.
4. On August 12th, 2019, it updated to X735 V2.0: add the TYPE C port to POWER the Raspberry Pi 4; (remain the other DC, MICRO USB and XH2.54 power port), and also compatible with Raspberry Pi 3B+ and previous versions.
5. On April 13th 2019, we firstly release the X735 V1.0 board.

Overview

The X735 is a multifunctional expansion board for all current models of the Raspberry Pi using a 40-pin header. It provides intelligent and safe power management, safe shutdown and full poweroff through software, an automatic temperature controlled fan which enables the use of the Raspberry Pi in extreme conditions including very high temperature environments.

The X735 safe shutdown board is fully compatible with our Raspberry PI 4 X825 V2.0; X825 V1.5, X857, X862, X872, X835, X832,X883, X829, X828, X820, X850, X860, X870,X822,X852 to provide intelligent and safe power management.

How to Power X735 V3.0：

• Via Type-C or Micro-USB 5Vdc +/-5%，≥3A; Recommend to use Geekworm UL listed 5V 4A Type-C power adapter (ASIN:B09J856PND).
• Via DC 5521 Jack 6V-30V width voltage input (Do not support 5V via DC Jack)

Note:

• Do not apply power to X735 via Type-C or Micro-USB and via DC 5521 Jack 6-30V at the same time!!!
• Do not apply power to your Raspberry Pi via the Pi's Micro-USB or Type C socket; Pls apply power to X735.
• When use X735 V2.5/V3.0 with X835/X832, please DO NOT power from X735, please power via X835/X832 DC 12V IN PORT!!!

Match Metal Case

• The metal case for install Raspberry Pi 4 and X735 board only, please refer to X728-C1 metal case. (ASIN: B09Z6C64NN)

PWM cooling fan(control by script):

• Dedicated PWM cooling fan for Raspberry Pi
• Air flow up to 6.01CFM and maximum speed of 5000 RPM
• Smooth PWM adjustment provides a quiet experience
• Real-Time fan speed reading
• Programmable temperature and fan speed

Reserved 40-pin stackable Header for Add-On Boards:

• Works with all current models of the Raspberry Pi
• Reserved 40-pin stackable Header for Add-On Boards

Compatible With NAS Storage Board:

• X825 Single 2.5 inch SATA HDD/SSD Expansion Board (B091JSRQ9C)
• X883 Dual 2.5 inch SATA HDD/SSD Expansion Board(B09DG971QZ)
• X832 3.5 inch SATA HDD Expansion Board(B08CKBMJS1)
• X857 mSATA SSD Expansion Board (B085HG7ZLJ)
• X862 M.2 NGFF SATA SSD Storage Board(B088HCY4TH)
• X820 V3.0 2.5" SATA HDD/SSD Storage Board (B073CGQD9C)
• X850 V3.0 mSATA SSD Storage Board ( B073CHHFMP)
• X852 V1.1 Dual mSATA SSD Storage Board

Compatible With NAS Case:

• X825-C8 Case (for Pi4+X825 V2.0+X735)
• X857-C3 Case (for Pi4+X857 V2.0/X862 V2.0+X735)
• X832-C1 Case (for Pi4+X832 V1.2+X735)
• X835-C1 Case (for Pi4+X832 V1.0+X735)
• X820 V3.0 Case (for Pi3+X820 V3.0+X735)

X735 V3.0 Packing List

• 1 x X735 V3.0 Power Management Board
• 4 x Spacer F/F M2.5 *12mm
• 4 x Spacer M/F M2.5 *12+6mm
• 8 x Screw M2.5 *6mm
• 1 x Jumper link Pitch 2.54mm