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ASROCK B550 Extreme4 - Motherboard | Alzashop.com

(Image: © ASRock)


The B550 PG Velocita delivers capable VRMs, 2.5 GbE, and style for about $220. The only thing missing is integrated Wi-Fi. There is a Key-E slot if needed, but similarly equipped alternatives include Wi-Fi for the same price or less.


  • Solid 14-Phase 50A Power Delivery
  • 2.5 Gigabit Ethernet
  • USB Type-C port on the rear I/O


  • Does not include Wi-Fi
  • Price compared to similar models

ASRock’s PG Velocita B550PG is a welcome addition to the company’s lineup, delivering a motherboard that sits between the more premium Taichi SKU and just above a historical crowd favorite, the Extreme 4. The B550 PG Velocita is a $219.99 board that hopes to bring users in by offering 14-phase power delivery, 2.5Gb Ethernet, and a USB 3.2 Gen 2 Type-C port on the rear. We’ll dive deep into the details and performance of this motherboard and see if it is a worthy purchase and can make its way onto our best motherboards list.

ASRock’s B550 product stack currently consists of 12 boards, from the B550M-HDV ($79.99 – review coming soon), two Steel Legend boards (ATX and mATX), mid-range Gaming boards like our Velocita and the Phantom Gaming 4, the Extreme 4 ($184.99), up to the flagship B550 SKU, the Taichi. By sheer quantity,  ASRock’s lineup has something for just about every AMD Ryzen system builder.

The B550 Velocita’s highlights include VRMs capable of overclocking the Ryzen 9 3900X to our ambient cooling limits. Although it isn’t the most robust setup we’ve seen on this platform, it should have enough headroom to handle the flagship Ryzen 9 3950X, too. The Velocita has room for two M.2 storage devices as well as a Key-E slot for adding a Wi-Fi module. The Velocita also includes the typical collection of features in this price range, including six SATA3 6 Gbps ports, integrated RGB lighting, and a premium Realtek audio codec.

Using optimized defaults in the BIOS and the RAM set to DDR4 3600, our Velocita allowed the Ryzen 9 3900X to boost to rated 4.6 GHz (it peaked at 4.650 according to Hwinfo) without issue. During overclocked operations, the board’s VRMs stayed cool and well within operating parameters, thanks to its large heatpipe-connected heatsinks and active VRM cooling. The board also performed well throughout all tests, spinning through our benchmarks with apparent ease.

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Specifications – ASRock B550 PG Velocita

Socket AM4
Chipset B550
Form Factor ATX
Voltage Regulator 14 Phase (12+2, 50A MOSFETs)
Video Ports HDMI (v2.1)
USB Ports (2) USB 3.2 Gen 2, Type-A and Type-C (10 Gbps), (2) USB 3.2 Gen 1, Type-A (5 Gbps), (4) USB 2.0, Type-A
Network Jacks (1) 2.5 GbE
Audio Jacks (5) Analog + SPDIF
Legacy Ports/Jacks PS/2
Other Ports/Jack
PCIe x16 (1) v4.0 (x16), (1) v3.0 (x4)
PCIe x8
PCIe x4
PCIe x1 (2) v3.0 (x1)
CrossFire/SLI AMD Quad CrossfireX and CrossFireX (2-Way)
DIMM slots (4) DDR4 4733+(OC), 128GB Capacity
M.2 slots (1) PCIe 4.0 x4 / PCIe Only, (1) PCIe 3.0 x2 / SATA + PCIe
U.2 Ports
SATA Ports (6) SATA3 6 Gbps (RAID 0, 1 and 10)
USB Headers (1) USB v3.2 Gen 2 (Type-C), (1) USB v3.2 Gen 1, (2) USB v2.0
Fan/Pump Headers (7) 4-Pin
RGB Headers (2) aRGB (3-pin), (2) RGB (4-pin)
Legacy Interfaces
Other Interfaces FP-Audio, TPM
Diagnostics Panel Yes (2 character LED)
Internal Button/Switch Power and Reset
SATA Controllers
Ethernet Controller(s) Realtek Dragon 8125B (2.5 GbE)
Wi-Fi / Bluetooth
USB Controllers
HD Audio Codec Realtek ALC1220
DDL/DTS Connect ✗ / ✗
Warranty 3 Years


Starting with what’s inside the box along with the motherboard, we find a minimalistic approach, with guides, cables and screws. Below is a complete list of the included accessories.

  • Support DVD
  • Quick Install guide
  • (4) SATA cables
  • (3) Screws for M.2 sockets
  • (2) Standoffs for M.2 sockets


The B550 PG Velocita’s appearance matches that of the other Phantom Gaming boards, sporting a black PCB along with silver, grey and black heatsinks/shrouds. Additionally, red accent lines run from the chipset area up through the rear IO breaking up the all black PCB. The Velocita includes RGB LED lighting under the IO shroud, which lights up the top of the left VRM heatsink as well as a hidden Phantom Gaming symbol located on the chipset heatsink. The B550 PG Velocita is a good-looking motherboard that should fit in with most build themes.

No description available.(Image credit: ASRock)

On the top half of the board we get a better look at the shrouds, VRM heatsinks and other important bits. In the top-left corner are an 8-pin (required) and 4-pin (optional) EPS plug to deliver power to the CPU. Also visible in that area is the heatpipe connecting the two heatsinks. The left VRM heatsink sports the B550 Phantom Gaming Velocita written on top, lit up by the RGB LEDs hidden under the shroud.

To the right of the socket area above the DIMM slots are the first two (of seven) fan headers. The CPU fan header supports the standard 1A/12W while the second, labeled CPU Fan 2/WP_3A, supports up to 3A/36W. All fan headers support both PWM- and voltage-controlled devices. Just to the right of these headers are the first two (of four) RGB headers (3-pin and 4-pin).

Just below these headers are the four black DIMM slots. The unreinforced slots support up to 128 GB of RAM with speeds reaching up to DDR4 4733. That’s one of the faster listings, but as always your mileage will vary. Like all other boards, this also depends on the quality of the integrated memory controller and the memory kit used.

On the far right edge is another 4-pin fan header, along with a 24-pin ATX power connector. Just below this, in silver, we find the front panel USB 3.2 Gen 2 Type-C header. In black, just south of this. is the front panel USB 3.2 Gen 1 header.

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