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The ASRock B550M Pro4 motherboard is designed to accommodate AMD Ryzen 3rd generation processors on socket AM4. It will allow the assembly of a powerful and versatile configuration capable of performing all tasks.
Micro ATX Socket AM4 AMD B550 motherboard - 4x DDR4 - SATA 6Gb/s M.2 PCI-E NVMe - USB 3.1 - PCI-Express 4.0 16x
Available from 107€91 on the outlet deals
The ASRock B550M Pro4 motherboard is designed to host AMD Ryzen 3rd generation processors on socket AM4. It will allow the assembly of a powerful and versatile configuration capable of performing all tasks. Gaming, streaming, intensive multitasking, multimedia creation, it is the ideal solution to design a high-end PC with high performance. It also supports DDR4 RAM, PCI-Express 3.0 16x graphics cards, SATA 6 Gb/s and M.2 PCI-E NVMe drives, and USB 3 .0 and USB 3.1 devices .
The AMD Ryzen 3000 processors are among the first 7nm PC processors and are PCIe 4.0 compatible. The third generation Ryzen, codenamed Matisse, impresses with its many cores and threads and very high base frequencies ! AMD's Ryzen 3000 offers a (re)discovery of high-end performance for gaming, content creation and intensive multitasking. They allow you to do EVERYTHING even faster and more fluidly.
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General information |
Product name |
ASRock B550M Pro4 |
Brand |
ASRock | |
Model |
B550M PRO4 R2.0 | |
Processor |
Processor support |
AMD AM4 |
Number of CPUs supported |
1 | |
Chipset |
Chipset |
AMD B550 |
Memory |
Memory format |
4 X DIMM 288-pin (DDR4) |
Memory Frequency(ies) |
DDR4 4733 MHz | |
| DDR4 4666 MHz | ||
| DDR4 4600 MHz | ||
| DDR4 4533 MHz | ||
| DDR4 4466 MHz | ||
| DDR4 4400 MHz | ||
| DDR4 4333 MHz | ||
| DDR4 4266 MHz | ||
| DDR4 2133 MHz | ||
| DDR4 2400 MHz | ||
| DDR4 2666 MHz | ||
| DDR4 2933 MHz | ||
| DDR4 3200 MHz | ||
| DDR4 3466 MHz | ||
| DDR4 3600 MHz | ||
| DDR4 3733 MHz | ||
| DDR4 4200 MHz | ||
| DDR4 4133 MHz | ||
| DDR4 4000 MHz | ||
| DDR4 3800 MHz | ||
| DDR4 3866 MHz | ||
Memory type |
DDR4 | |
Memory technology |
Dual Channel | |
Maximum RAM capacity per slot |
32 GB | |
Maximum RAM capacity |
128 GB | |
Graphic |
Integrated graphics controller |
No |
Compatible graphics core integrated in the CPU |
Yes | |
Expansion slots |
Graphic connector(s) |
1 X PCI Express 4.0 x16 |
| 1 X PCI Express 3.0 16x (x4) | ||
Number and Type of slots |
1 X PCI Express 3.0 x1 | |
Multi-GPU type |
CrossFireX | |
Audio |
Audio Chipset |
Realtek ALC1200 |
Number of audio channels |
8 | |
Network |
Number of ports/Ethernet controler |
1 X Realtek RTL8111H |
Network standard(s) |
10/100/1000 Mbps | |
Wi-Fi |
No | |
Storage |
RAID supported |
Yes |
Hard drives connectors |
1 X M.2 - PCI-E 4.0 x4 | |
| 6 X Serial ATA 6Gb/s (SATA Revision 3) | ||
| 1 X M.2 - PCI-E 3.0 x2 + SATA 6 Gb/s | ||
Number of M.2 slot(s) |
2 | |
Supported RAID Modes |
10 | |
| 0 | ||
| 1 | ||
Connectivity |
Motherboard connector location |
Standard connectors (on the motherboard) |
Rear panel connectors |
1 X VGA (D-sub 15 Female) | |
| 1 X HDMI Female | ||
| 1 X DisplayPort Female | ||
| 1 X USB 3.1 Type C | ||
| 1 X USB 3.1 | ||
| 4 X USB 3.0 | ||
| 2 X USB 2.0 | ||
| 1 X RJ45 Female | ||
| 1 X MiniDin 6 Female (PS/2) | ||
| 3 X 3.5mm Jack Female Stereo | ||
Additional connectors |
2 X LED RGB connector(s) | |
| 2 X Addressable LED RGB connector(s) | ||
| 1 X TPM | ||
| Front panel audio | ||
| Chassis intrusion | ||
| 1 X +12V (Power supply P8) | ||
| 1 X ATX 24 Pin | ||
| 1 X Serial (RS-232) | ||
| 4 X Internal USB 2.0 | ||
| 4 X Internal USB 3.0 | ||
Physical characteristics |
Motherboard format |
Micro ATX |
Length |
244 mm | |
Width |
244 mm | |
Equipment |
Advanced overclocking features |
Yes |
Use |
Gamer | |
LED |
Yes | |
Warranties |
Commercial warranty |
Seller 3 years |
Legal warranty |
See terms & conditions |
See all ASRock products
Product referenced on 16 Jun 2020
A card that lives up to expectations and lasts! Mounted in an in-house server, it has been running 24 hours a day for 3 years without failing.
Please note: if the M.2 SATA slot is used, two SATA3 slots are unusable!
This card has everything I needed. Already equipped with two ASRocks, why look any further?
The trouble comes with the management of the USB ports. I should have known better: there are more settings available than there are ports on the card! See here: https://imgur.com/a/us17cyq
Besides, the BIOS and boot times were incredibly long until I disabled the USB3 ports!
Once in the OS (debian, ubuntu, archlinux) I get lags on the keyboard or mouse, and messages like: "client bug: event processing lagging behind by 14ms, your system is too slow" or "kernel: usb usb1-port1: connect-debounce failed" In short, everything is fine except that it takes three hours between a click and its effect, not to mention the scrolling. (More details here: https://forum.hardware.fr/hfr/OSAlternatifs/Hardware-2/config-boiteuse-sujet_76799_1.htm)
This problem is also found on windows, but ASRock seems to be ignoring it. I'm waiting for an answer from LDLC to see what can be done. I would love to have a fully functional motherboard.
In the same universe: b550 am4 | b550m | b550m pro4 | b550m pro4 r2.0 | asrock b550m pro4
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