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Description
ASRock B550 Pro4 AMD AM4 Socket Motherboard, ATX, 4x DDR4 Slots, 2x M.2 Sockets, GbE LAN, 1x D-Sub / 1x HDMI PortWINDOWS 11 READY Supports 3rd Gen AMD AM4 Ryzen Future AMD Ryzen Processors 8 Power Phase Design, Digi Power Supports DDR4 4733+ (OC) 1 PCIe 4. 0 x16, 1 PCIe 3. 0 x16, 2 PCIe 3. 0 x1, 1 M. 2 Key E for WiFi Graphics Output Options: HDMI, D Sub AMD CrossFireX 7. 1 CH HD Audio (Realtek ALC1200 Audio Codec), Nahimic Audio 6 SATA3, 1 Hyper M. 2 (PCIe Gen4 x4), 1 M. 2 (PCIe Gen3 x2 & SATA3) 2 USB 3. 2 Gen2 (Rear Type A+C), 6 USB 3. 2 Gen1 (2 Front, 4 Rear)
WINDOWS 11 READYSupports 3rd Gen AMD AM4 Ryzen / Future AMD Ryzen Processors
8 Power Phase Design, Digi Power
Supports DDR4 4733+ (OC)
1 PCIe 4.0 x16, 1 PCIe 3.0 x16, 2 PCIe 3.0 x1, 1 M.2 Key E for WiFi
Graphics Output Options: HDMI, D-Sub
AMD CrossFireX
7.1 CH HD Audio (Realtek ALC1200 Audio Codec), Nahimic Audio
6 SATA3, 1 Hyper M.2 (PCIe Gen4 x4), 1 M.2 (PCIe Gen3 x2 & SATA3)
2 USB 3.2 Gen2 (Rear Type A+C), 6 USB 3.2 Gen1 (2 Front, 4 Rear)
Gigabit LAN
Nahimic Audio
Whether you are using headphones, a headset, external or internal speakers, via USB, Wi-Fi, analog output or even HDMI, Nahimic Audio offers you the most engaging listening experience, vibrant and rich with details.
8 Power Phase Design
Featuring sturdy components and completely smooth power delivery to the CPU. Plus, it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well.
Premium 50A Power Choke
Compared to traditional chokes, ASRock’s premium 50A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.
2oz Copper PCB
2 ounce copper inner layers that provide stable signal traces and power shapes! Delivering lower temperature and higher energy efficiency for overclocking, it's able to support the latest DDR4 memory modules with most extreme memory performance!
Specifications
Unique Feature
ASRock USB 3.2 Gen2
- ASRock USB 3.2 Gen2 Type-A Port (10 Gb/s)
- ASRock USB 3.2 Gen2 Type-C Port (10 Gb/s)
ASRock Super Alloy
- XXL Aluminum Alloy Heatsink
- Premium 50A Power Choke
- Sapphire Black PCB
- High Density Glass Fabric PCB
- 2oz Copper PCB
ASRock Steel Slot Gen4
ASRock Full Coverage M.2 Heatsink
ASRock Hyper M.2 (PCIe Gen4x4)
ASRock POST Status Checker (PSC)
ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
ASRock Live Update & APP Shop
CPU
Supports 3rd Gen AMD AM4 Ryzen / future AMD Ryzen Processors
Digi Power design
8 Power Phase design
Not compatible with AMD Ryzen 5 3400G and Ryzen 3 3200G
Chipset
AMD B550
Memory
Dual Channel DDR4 Memory Technology
4 x DDR4 DIMM Slots
AMD Ryzen series CPUs (Matisse) support DDR4 4533+(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory
AMD Ryzen series APUs support DDR4 4733+(OC) / 4666(OC) / 4600(OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory
Max. capacity of system memory: 128GB
Supports Extreme Memory Profile (XMP) memory modules
15µ Gold Contact in DIMM Slots
BIOS
256Mb AMI UEFI Legal BIOS with GUI support
Supports "Plug and Play"
ACPI 5.1 compliance wake up events
Supports jumperfree
SMBIOS 2.3 support
CPU, CPU VDDCR_SOC, DRAM, VPPM, 1.05V_PROM_S5, 2.5V_PROM, +1.8VSB, VDDP Voltage Multi-adjustment
Graphics
Integrated AMD Radeon Vega Series Graphics in Ryzen Series APU
DirectX 12, Pixel Shader 5.0
Shared memory default 2GB. Max Shared memory supports up to 16GB.
Dual graphics output: support HDMI and D-Sub ports by independent display controllers
Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz
Supports D-Sub with max. resolution up to 1920x1200 @ 60Hz
Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI 2.1 Port (Compliant HDMI monitor is required)
Supports HDR (High Dynamic Range) with HDMI 2.1
Supports HDCP 2.3 with HDMI 2.1 Port
Supports 4K Ultra HD (UHD) playback with HDMI 2.1 Port
Supports Microsoft PlayReady
Audio
7.1 CH HD Audio with Content Protection (Realtek ALC1200 Audio Codec)
Premium Blu-ray Audio support
Supports Surge Protection
PCB Isolate Shielding
Individual PCB Layers for R/L Audio Channel
Nahimic Audio
LAN
PCIE x1 Gigabit LAN 10/100/1000 Mb/s
Realtek RTL8111H
Supports Wake-On-LAN
Supports Lightning/ESD Protection
Supports Energy Efficient Ethernet 802.3az
Supports PXE
Slots
AMD Ryzen series CPUs (Matisse)
- 2 x PCI Express x16 Slots (PCIE1: Gen4x16 mode; PCIE3: Gen3 x4 mode)
AMD Ryzen series APUs
- 2 x PCI Express x16 Slots (PCIE1: Gen3x16 mode; PCIE3: Gen3 x4 mode)
- 2 x PCI Express 3.0 x1 Slots
- Supports AMD Quad CrossFireX and CrossFireX
- 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT module
Storage
6 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug
1 x Hyper M.2 Socket (M2_1), supports M Key type 2260/2280/22110 M.2 PCI Express module up to Gen4x4 (64 Gb/s) (with Matisse) or Gen3x4 (32 Gb/s)
1 x M.2 Socket (M2_3), supports M Key type 2242/2260/2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x2 (16 Gb/s)
Connector
1 x COM Port Header
1 x SPI TPM Header
1 x Power LED and Speaker Header
2 x RGB LED Headers
2 x Addressable LED Headers
1 x CPU Fan Connector (4-pin)
1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)
4 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)
1 x 24 pin ATX Power Connector
1 x 8 pin 12V Power Connector
1 x 4 pin 12V Power Connector
1 x Front Panel Audio Connector
2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports) (Supports ESD Protection)
Rear Panel I/O
Antenna Bracket
1 x PS/2 Mouse/Keyboard Port
1 x D-Sub Port
1 x HDMI Port
1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) (Supports ESD Protection)
1 x USB 3.2 Gen2 Type-C Port (10 Gb/s) (Supports ESD Protection)
4 x USB 3.2 Gen1 Ports (Supports ESD Protection)
1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
HD Audio Jacks: Line in / Front Speaker / Microphone
Software and UEFI
Software
- ASRock Motherboard Utility (A-Tuning)
- ASRock Polychrome SYNC
- ASRock XFast LAN
UEFI
- ASRock Full HD UEFI
- ASRock Instant Flash
Support CD
Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar
Accessories
Quick Installation Guide, Support CD, I/O Shield
2 x SATA Data Cables
3 x Screws for M.2 Sockets
1 x Standoff for M.2 Socket
Hardware Monitor
Temperature Sensing: CPU, CPU/Water Pump, Chassis/Water Pump Fans
Fan Tachometer: CPU, CPU/Water Pump, Chassis/Water Pump Fans
Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, CPU/Water Pump, Chassis/Water Pump Fans
Fan Multi-Speed Control: CPU, CPU/Water Pump, Chassis/Water Pump Fans
Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore, CPU VDDCR_SOC, DRAM, VPPM, 1.05V_PROM_S5, +1.8V, VDDP
Form Factor
ATX Form Factor: 12.0-in x 9.6-in, 30.5 cm x 24.4 cm
Solid Capacitor design
2oz Copper PCB
OS
Microsoft Windows 10 64-bit
Certifications
FCC, CE
ErP/EuP ready (ErP/EuP ready power supply is required)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 26 reviews
Sort
Product Reviews
★★★★★ 5
Great Looking and Sturdy Monitor Arms
Color: White-Mount, Color: White-Mount
I'm so impressed with these arms. They're super strong and sturdy holding up my 27" monitor and 34" ultrawide monitor. Setting up for the most part is pretty simple and easy.
One of the best things I like about these arms is the cable management. I had several arms before for my setup at home and work, and the cable covers are usually pretty flimsy and just slide and lock in. I have a lot DP and HDMI cables due to my dual workstation, so these cable covers often end up popping out since its so full. These cable covers are different since they are screwed down tight with a bolt. All my cables fit pretty snug, but there is no bulging and I don't have to worry about the covers popping off ever again. I'd recommend keeping it at a maximum of 4 thicker cables though. However, fair warning that attaching the covers can be a pain so if you have to detach cables often, the screwed in covers can be a problem. If you have a set up like mine that won't really change often, it works well. If you can, I would suggest having 2 people set up the cable management. One to hold down the cover in place and the other to screw it in. I did it myself just fine though.
The range of motion is great for my needs, but please note that I tried stacking my monitors and it didn't quite work. I would say it's 1 to 2 inches shy of properly stacking them.
Overall, a great looking set of dual monitor arms. The extra ports on the base are a cool feature that do work, but I haven't had much use of it yet. Love that they had a white option to match my set up too. These are a little pricey, but they're really worth it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2021
★★★★★ 5
You will be hard pressed to find an equal or better product regardless of the price.
Color: Black-Mount, Color: Black-Mount
Review of AVLT Dual 13"-35" Monitor Arm Desk Mount
I do not usually rate items, except for products that are exceptional or are provided by a vendor that is above all others.
I looked at this item several times, because the price was $100 less than my five year old dual arm could not raise the 38” monitor more that 8” from the desk surface and barely keep my wiring hidden.
Finally, the website for AVLT convinced me to place the order for the AVLT-DM41-1, Dual 13"-35" Monitor Arm Desk Mount. I was not disappointed.
The quality and finish of the aluminum mount is space age quality, the manual acceptable (ilea type); most important the I can raise my 38” monitor to a perfect ergonomic height.
My monitors are a Dell 38” U3818DW, (larger than 13” to 35” range) and a Dell 24” U2412M, U. for each I use the factory power cable, DP to DP display port 6 foot cables and high speed USB 3 cables for each monitor.
The assembly went without a hitch, no problem hiding the heavy cables that I use, my only problem was that my was not a C-clamp, attaching the hex bolts to the base from the underside of my desk was difficult; t would had been easier had they used a stud bolts to clamp the unit down.
The arm springs had no problem supporting my 38” monito, the unit is so sturdy I expect to receive years of service.
I strongly recommend this item because of value, quality and design. You will be hard pressed to find an equal or better product regardless of the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 10, 2020
★★★★★ 5
Great product
Color: White-Mount
Amazing product. It’s perfect. Tried a few other dual monitor arms and they sucked and didn’t hold up the monitors. This one is amazing and aesthetically pleasing. Well worth the money. All parts included. Large range of motion, you just have to loosen the screws to make it easier to move or tighten to keep everything still. Perfect size and provides all my amount of desk space back.
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Reviewed in the United States on January 10, 2026
★★★★★ 5
Good quality last long
Style: FHD 240Hz, Size: 27-inch, Style: FHD 240Hz, Size: 27-inch
I’ve had it for about almost two years and it’s never don’t me wrong, Someone even smacked it almost a punch and it still works perfectly so it’s sturdy 😭
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Reviewed in the United States on April 30, 2026
★★★★★ 5
Smooth, immersive gameplay at 240Hz – Great curved monitor!
Style: FHD 240Hz, Size: 27-inch
This monitor exceeded my expectations. The 240Hz refresh rate makes a huge difference for gaming—everything feels incredibly smooth and responsive. The 1500R curved screen adds a real sense of immersion, especially in racing and FPS games.
Picture quality is great thanks to the VA panel. You get deep blacks, strong contrast, and wide viewing angles. The 1ms response time and Adaptive-Sync (FreeSync) keep things sharp with no screen tearing.
Build quality is solid, and the adjustable stand (height, tilt, and swivel) is a big plus. I also appreciate the VESA compatibility and the fact that it comes with an HDMI cable included.
If you’re a gamer looking for speed and immersion, this monitor is definitely worth it. The Full HD resolution is fine for gaming, but might not be ideal for serious productivity or photo editing.
Highly recommended for smooth, immersive gaming at a great value!
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Reviewed in the United States on July 29, 2025
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