User Guide

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Overview
X825 V2.0 is the latest version of X825, updated from X825 V1.5, X825 V1.2 which release at April 1st 2020.
The X825 expansion board provides a complete storage solution for newest Raspberry Pi 4 Model B, it
supports up to 4TB 2.5-inch SATA hard disk drives (HDD) / solid-state drive (SSD). Only 2.5 inch SATA
interface HDD/SDD hard disk is suitable for X825 Board;
You can use X825 V2.0 to DIY your family NAS via RaspNAS or OpenMediaVault etc.
Wiki: https://wiki.geekworm.com/X825_V2.0
Features
1. Supports up to 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.)
2. Ideal storage solution for Raspberry Pi 4 Model B
3. UASP supported by X820 V2.0 for Raspberry Pi 4, NOT support TRIM
4. Use a shorter USB 3 connector to reduce the overall height
5. Use new 4 pieces of test pins to power each other with raspberry pi 4, no additional wire required
6. LED red indicator indicates powered status and blue indicator indicates drive status
7. USB 3.1 Gen1 to SATA 6Gb/s Bridge Controller
8. Since X825 V2.0 use a shorter USB 3 connector, thereby reducing the overall height, so only compatible
with X825-C8 metal case. One X825-C8 case can assembly raspberry pi 4 model b board, X825 V2.0 and
X735.
9. PCB Dimensions: 85x105mm/3.33x4.13inch