








⚙️ Power your pro build with MACHINIST X99 — where speed meets stability!
The MACHINIST X99 PR9-H is a high-performance Micro ATX motherboard designed for Intel LGA 2011-3 socket CPUs, including Xeon E5 V3/V4 and Core i7 series. It supports up to 128GB DDR4 RAM across four slots, features a switchable NVMe/NGFF M.2 slot with up to 32Gbps transfer speeds, and offers robust 6-phase power delivery with advanced cooling solutions. Ideal for professionals seeking a reliable, future-ready platform with gigabit LAN and PCIe 3.0 connectivity.







| Brand | MACHINIST |
| Manufacturer | MACHINIST |
| Model | X99 PR9-H |
| Model Name | X99 PR9-H |
| Package Dimensions | 24.99 x 21.11 x 5.41 cm; 739 g |
| Item model number | X99 PR9-H |
| Memory Storage Capacity | 128 GB |
| Memory Slots Available | 4 |
| RAM memory maximum size | 128 GB |
| Ram Memory Technology | DDR4 |
| Processor Type | Xeon |
| Processor Socket | LGA 2011-3 |
| Compatible Processor Types | Intel E5 V3 V4 Series CPUs |
| Graphics Card Interface | PCI Express |
| Compatible Devices | Personal Computer, Server |
| Chipset Type | Intel HM55 |
| Number of items | 1 |
| Batteries Included | Yes |
| Batteries Required | Yes |
| Number of Ports | 12 |
| Total USB ports | 6 |
| Manufacturer | MACHINIST |
| Country of Origin | China |
| Item Weight | 739 g |
W**.
Actually way better then I was expecting, works with my Xeon perfectly, documention needs a little improvement but it's running my Linux server perfectly
I**N
For all the issues I had gone through getting this build working, the motherboard contributed to none of it. It was mostly my stupidity and failure to double check the contents of what I thought was a Windows install USB. To all the people that's saying there's no manual, there is. It's on the listing page. Look for it in the "Product guides and Documents" section in the listing page. Yes, I understand that you aren't shipped a physical one with the mobo. For how much this mobo is, I'm not gonna complain. The supported RAM speeds is DDR4-2133 and DDR4-2400, and nothing else. I'm not kidding. My ONLY gripe is the fact that there's only two fan headers. Put like three more on and you'll get six stars from me.
A**R
If I could give it a zero I would, this company should be banned from selling anything on any platform. I have purchased three (3) motherboards from this company Two are the no-name x99 dual processor (pos) one stopped working after a month and the second one out of the box would not post, giving a bad ram error and was unable to bridge the ram for the 2nd cpu. This board I did not pay attention to the seller otherwise would not have purchased it, the board was delivered in a box that looks like rats were eating it, NO cover on the cpu socket and yes thermal paste everywhere.
R**E
The first board i received didn't have v4 xeon support so i had to buy a v3 to get it to post i accidentally broke a pin resulting into having to buy yet another board but after doing some testing this one actually booted with my v4 xeon its a hit or miss or you're going to buy this board i recommend sticking to v3 xeons and only try v4 if its all you have since bios updates are almost non existent you just have to luck out with these boards
G**E
Arrived no manual no cmos battery, installed works great considering price. Replaced a very expensive main board cheap and easy!
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