Price: £44.78 - £38.99
(as of Oct 06, 2021 05:33:19 UTC – Details)

[Update]
On April 17th 2021, X825 V1.5 board is updated to X825 V2.0:
Add 4pcs test pins so that raspberry Pi and X825 can power each other, more easy to assembly and provide power.
Removed the on-board power button and interface for external switch, but you can connect the X735 board for PWM cooling fan and power management like safe shutdown.
Shorten the gap between raspberry pi 4 & X825, thereby the hight of the matching case X825-C8 will be shorter then previous version.

[Features]
Supports upto 4TB 2.5-inch SATA hard disk drives (HDD) / solid-state drive (SSD) (Theoretically it can work with 6TB or 8TB as well. But actually we do not test the X825 board with 6tb or 8tb HDD, you can have a try.)
Ideal storage solution for Raspberry Pi 4 Model B
Powers the Raspberry Pi via 4pcs test pins
LED red indicator indicates powered status and blue indicator indicates drive status
USB 3.1 Gen1 to SATA 6Gb/s Bridge Controller
Quick file transfer with high-speed USB 3.1 connectivity from a PC or a Mac

[Packing List]
1 x X825 V2.0 Expansion Board
1 x USB 3.1 connector
1 x Mounting Screws Pack

[Update] X825 V2.0 is the updated version from X825 V1.5. It supports 2.5 inch SATA HDD / SSD. On theory the SSD capacity is no limit, but SSD thickness is limited by the standoffs height or case.
[How to Power] Mode 1. via X825: DC 5V/4A with 5.5×2.5mm Jack; Model 2. via RPi 4: Type C; Model 3. via X735: DC 5V In/ Type C/ Micro USB
[Packing List] X825 V2.0 Board * 1, USB 3.1 Connector * 1, Mounting Screw Pack * 1
[WiKi for Reference] wiki.geekworm.com/X825_V2.0
[Matching Metal Case] X825 V2.0 only compatible with X825-C8 Case (ASIN: B09295FHBW), X825-C8 Case compatible with max. 9.5mm HDD/SSD. Also fit with X735 Cooling & Power Mgnt Board (ASIN: B091TY1CKV)