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X829 V1.3
X829 V1.3
X829 Interface
X829 HDD
X829 V1.3
X829 V1.3
X829 USB
X829 Packing List


The X829 dual 2.5" SATA HDD 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 two 2.5" HDD/SSD to be conveniently attached to Raspberry Pi 4. 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 X829 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.

Please refer to X822 or X828 if you need dual SATA board for raspberry pi 3.



Raspberry Pi 4 Model B

Operating System

All Raspberry Pi operating systems

  • Ideal storage solution for Raspberry Pi 4 - Dual 2.5" SATA HDD/SSD Shield
  • Supports dual 2.5 SATA HDDs/SSDs working at the same time
  • Supports up to 4TB 2.5-inch SATA hard disk drives (HDD) / solid-state drive (SSD)
  • Allows booting OS from your HDD/SSD for faster app opens, web serving and file copying [1]
  • Provides additional 2 USB3.1 Gen1 ports for Raspberry Pi
  • Function to power the RPI via XH2.54 only needing a single power supply
  • Integrated USB 3.1 Gen1 to SATA 6Gb/s bridge controllers
  • Integrated USB 3.1 Gen 1 Hub Controller
  • USB3.1 Gen1 5Gb/s connectivity offers plug-and-play functionality on your Raspberry Pi 4
  • Quick file transfer with high-speed USB3.1 5Gb/s connectivity from a PC or a Mac [2]
  • Specially-made USB3.1 jumper to connect with Raspberry Pi - no additional cables needed
  • Ultra-compact design allows for ease of use two HDD/SSD with Raspberry Pi 4
  • LED blue indicator indicates each drive status
  • 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 X728 for uninterruptible power supply (18650 UPS, 5.1V 8A, smart power mgmt)
  • Power supply: 5.1Vdc +/-5% , ≥4A
  • Ports & Connectors:
  1. DC jack - 5.5x2.5mm
  2. USB socket - USB 3.0 type A
  3. Power connector - XH2.54 2-pin
  4. SATA socket - 7+15P Female
  • PCB Size 107.5mm x 85mm
  1. A microSD card is required for forceing the Raspbian OS to use the HDD/SSD for its "root" partition
  2. Additional USB3.0 A Male to A Male cable is required (not supplied)
  • For use with original power supply unit only
  • Do not power your Raspberry Pi via the Pi's 40-pin header and Type-C USB socket at the same time.

How to Power

How to Power X829

About the HDD Thickness

X829 HDD

Packing List

  • X829 HDD/SSD expansion board x 1
  • USB 3.0 Jumper x 1
  • 2-Pin Power Connection Wire x 1
  • Power daughter board x 1
  • Spacer F/F M2.5 x 15mm x 7
  • Spacer M/F M2.5 x 11mm x 1
  • Screw M2.5 x5mm x 11
  • Screw M3 x 6mm x 4

Matching Metal Case

Please refer to X829-C1.

Installation Video

Installation video for Raspberry Pi 4+X829+X735+X829-C1 Case: https://youtu.be/0oQr77aQ6rk

Installation video for Raspberry Pi 4+X829+X708/U100+X829-C1 Case: https://youtu.be/Lz2KAxhcK2E

User Manual


Q1. Does the X829 stackable?

A: No, X829 is not stackable, please refer to X828, among the 2.5" SATA shield I(X820 X825 X829 X828), ONLY X828 is stackable.

Q2: Do X series NAS shields support UASP?

A: 2.5", 3.5" NAS shield(such as X825 X829 X829 X835 X832) use JMS583 IC, and all supports UASP(NOTE: Not supported UASP in earlier versions, produced before July 1, 2020), to prevent HDD/SDD from entering the hibernation state,

but M.2 MSATA SSD (X862) only support TRIM not UASP;

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Anonymous user #8

24 days ago
Score 0++
Do I have to run a script in order to see the hard drives or are they are visible after installation?

Anonymous user #7

one month ago
Score 0++
when I connect the usb bridge, the wifi disconnects. please help me.

Anonymous user #6

one month ago
Score 0++

When calling "poweroff" from the operating system, the X735/X829 are still powered on.

Is there a way to shutdown the boards when the operating system also has already shut down?

Anonymous user #6

one month ago
Score 0++
Regarding the poweroff issue, it turns out the operating system has to send some signals to the X735 via the GPIO at the end of its shutdown sequence. Some SystemD service should do the trick.

Anonymous user #5

one month ago
Score 0++
update of my comment of anonymous user #5 i see the x835 that is stackable too: thanks a lot

Anonymous user #5

one month ago
Score 0++

can it also be used on raspberry pi3? perhaps with a soft cable instead of the bridge.

Does it support the power of two 3.5" HDD? Sometimes to transfer data from one HDD to the other

Anonymous user #3

2 months ago
Score 0++
I'm getting an "ext2fs_write_inode_full: Input/output error while writing reserved inodes" error when trying to format the drives when using X829 with OpenMediaVault 5. Any idea what the reason might be?

Anonymous user #4

2 months ago
Score 0++
Update on this issue: Geekwork support team got in touch with me to trobleshoot the issue. The issue was with a faulty USB bridge. Tested with USB A-to-A cable and everything works fine now. Thanks Geekwork for the quick response.

Anonymous user #2

3 months ago
Score 0++
Can you stack two or more X829s together (similar to X828)?


3 months ago
Score 0++
Sorry, no, X829 is not stackable.

Anonymous user #1

3 months ago
Score 0++
What height of 2.5 Inch disks does it support?


3 months ago
Score 0++

Hello sir,

The 2.5" SSD/HDD capacity is no limit, but SSD thickness is limited by the standoffs height.HDD1 thickness Max 11mm, HDD2 thickness Max 12mm.