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X873
,==Overview==
<span style="color:red;">'''In May 2021, the X873 has been updated with new longer USB3 connector, so the [[X857-C3]] case will not support with the X873 which you ordered after May 5th 2021.'''</span>
2.4G wifi will not stable, please use 5.8G wifi AP for the X873.
This is new updated version from [[X872]].
==Features==
* Ideal storage solution only for Raspberry Pi 4 - M.2 NVMe SSD Shield
* Supports up to 2TB M.2 NVMe SSD solid-state drives
* Supports M.2 NVMe SSD 2280 lengths only
* UASP supported only for Raspberry Pi 4
* Allows booting OS from your HDD/SSD for faster app opens, web serving and file copying
* USB3.1 Gen1 5Gb/s connectivity offers plug-and-play functionality on your Raspberry Pi 4
* Ultra-fast Data Transfers from a PC or a Mac (USB3.1 Gen2 10Gb/s, Gen1 5Gb/s, USB2.0 480Mb/s)
* Integrated USB 3.1 Gen2 to PCIe Gen3x2 10Gb/s bridge controller
* Integrated high efficiency step-Down Converter, 3.3V max3.5A to power the SSD
* USB bus-powered
* LED red indicator indicates powered status and blue indicator indicates drive status
* Specially-made USB3.1 jumper to connect with Raspberry Pi - no cabling required!
* 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)
* PCB Size :87mm x 56mm
==How to Power X873==
[[File:X873-V1.2-IMG-9471-packing.jpg|600px|Packing list]]
==Matching Metal Case==
<span style="color:red;">'''In May 2021, the X873 has been updated with new longer USB3 connector with mark 2113 on theUSB3 connector , so the [[X857-C3]] case will not support with the X873 which you ordered after May 5th 2021.'''
And you can use the [[X857-C1 Case]] for the X873 which you ordered after May 5th 2021.</span>
We use shorter copper spacer to connect Raspberry Pi 4 and X873 V1.2, which reduces the height of the entire product, so the matching metal case X857-C3 is shoter 3mm than X857-C1;
Please refer to [[X857-C3]].
Note: The case of X872 and X873 V1.2 are different. X872 should use [[X857-C1 Case]], but X873 V1.2 use [[X857-C3]] Case(Only for the X873 which ordered before May 2021).
==User Manual==
* About USB boot please refer to [[Does the X825/X855 support USB boot]]
* Tutorial – How to Initialize, Partition and Format a Brand New SSD in Windows: [[File:Tutorial_Initalize_New_SSD.pdf]]
* [https://www.howtoraspberry.com/2020/10/how-to-install-an-m-2-hard-drive-on-a-raspberry-pi-4/ How to Install an M.2 hard drive on a Raspberry Pi 4 ?] Thanks John MacDowall!
* [https://github.com/raspberrypi/firmware/issues/1515 Difficulty booting from SSD drive]
== About X873 I/O error==
A: Sorry, NO, this is not tested.
Q2. What to do if the X873 does not boot normally? A:Please use Raspberry Pi imager (or Win32DiskImager) [[File:Win32DiskImager.zip]] to burn the system firmware to the SSDon windows computer,If copying from SD card to SSD, it should not work. If you need to boot from the SSD, you need to use Win32DiskImager to burn the system to the SSD. Use the SD CARD COPIER that comes with RASPBIEERY PI OS. It may not work. Q3.Would the X873 be compatible with the Coral M.2 Accelerator B+M key? A: Sorry, not support.
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