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     Product Description   
  The X825 2.5 inch SATA HDD/SSD expansion board, offering an easy and fast way to create bigger storage solution for your Raspberry Pi 4B. Its elegant and ultra-compact design allows 2.5" HDD/SSD to be conveniently attached to Raspberry Pi. The SuperSpeed USB 3.0 port delivers a blistering data transfer rate of up to 5Gbps, letting you transfer a large amount of data in seconds. The mounting holes and standoffs help protect the hard disk drives, while effectively drawing the heat away from the drive for reliable performance. The built-in LED light indicates the reading or writing status – no more guesswork again.

The X825 can be the perfect storage solution for your home media center and building Network-attached storage (NAS) for storing and streaming your own videos, music, and digital photos around the house and even across the world. the X825 also supports operating system booting from your HDD/SSD for faster app opens, web serving and file copying.
    Product Overview 
For Use With
- Raspberry Pi 4 Model B
Operating System
- All Raspberry Pi operating systems
Key Features
- Ideal storage solution for Raspberry Pi 4 - 2.5" SATA HDD/SSD Shield  
- Supports up to 4TB 2.5-inch SATA hard disk drives (HDD) / solid-state drive (SSD)
- Integrated USB 3.1 Gen1 to SATA 6Gb/s bridge controller
- USB3.1 Gen1 5Gb/s connectivity offers plug-and-play functionality on your Raspberry Pi
- Allows booting OS from your HDD/SSD for faster app opens, web serving and file copying (see notes)
- Compatible with USB 2.0
- On-board push button to control power on /off
(Press-ON, Hold the button pressed at least 2s -OFF)
- Power the RPI via Pi's 40-pin header only needing a single power supply
- On-board XH2.54 power connectors allows to power other devices
- LED red indicator indicates powered status and blue indicator indicates drive status
- External Self-Powered or USB bus-powered
- Specially-made USB3.1 jumper to connect with Raspberry Pi - no additional cables needed
- Mounting holes and standoffs provide mechanical stability of the Raspberry Pi and X825 assembly
- Fully compatible with X735 for intelligent power management and cooling your Raspberry Pi
- Fully compatible with X710 for wide input voltage (6~36V) and intelligent power management
- Fully compatible with X765 for powering over Ethernet (POE, 5V 5A)
- Fully compatible with X725 for uninterruptible power supply (18650 UPS, 5.1V 8A, WOL)
- Power supply: 5Vdc +/-5% , 4A
- Ports & Connectors: DC jack - 5.5x2.5mm, USB socket - USB 3.0 type A,
                                  Power output connector - XH2.54 2-pin
                                  Power switch connector -PH2.0 4-pin
- PCB Size 107.5mm x 85mm
- A microSD card is required for forceing the Raspbian OS to use the HDD/SSD for its "root" partition
- For use with original power supply unit only
- USB 3.0 devices might generate radio frequency interference that can cause Wi-Fi and other wireless devices operating in the 2.4GHz band to have issues communicating with your Raspberry Pi4. To avoid interference on the 2.4GHz band using Wi-Fi, try using the 5GHz band instead. If problem still exists, please turn off WiFi and use the wired network instead.
Do not power your Raspberry Pi via the Pi's 40-pin header and type-C socket at the same time.
    Packing List
- X825 board x 1  
- USB3.1 jumper x 1  
- Power daughter board x 1  
- 2-Pin Power Connection Wire x 1  
- Spacer F/F M2.5 x 12mm x 4  
- Spacer M/F M2.5 x 11mm x 4  
- Screw M2.5 x 5mm x 8  
- Screw M3 x 6mm x 6  
- Spacer F/F M3 x 15mm x 4  
- Power adapter 5V 4A - Optional x 1
    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
  X735 V2.1  
- Smart power management
- Supports safe shutdown
- Supports full poweroff
- Auto-Control cooling fan 
- 40-pin header Reserved
  See details  
- Smart power mgmt board
- Wide 6~36V input range
- 5.1V 5000mA output
- Supports safe shutdown
- Low-noise cooling fan
  See details  
- Power over Ethernet board
- IEEE802.3at PoE standard
- 5V/5A 25W DC output
- Isolated switched-mode
- 4 XH2.54 power connectors
  See details  
- Smart power mgmt board
- Power on/wake on lan
- 18650 dual Cells Li-Ion UPS
- 5.1V 8A Power Backup
- 2nd 10/100M fast Ethernet
  See details