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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
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Description
ASRock B550M Phantom Gaming 4 AMD AM4 Socket Motherboard, Micro-ATX, 4x DDR4 Slots, 2x M.2 Sockets, GbE LAN, 1x DisplayPort / 1x HDMI PortSupports AMD AM4 Socket Ryzen 3000, 4000 G Series and 5000 Series Desktop Processors 8 Power Phase design Supports DDR4 4733+ (OC) 1 x PCIe 4. 0 x16, 1 x PCIe 3. 0 x16, 1 x PCIe 3. 0 x1 Supports AMD CrossFireX Graphics Output Options: HDMI, DisplayPort 7. 1 CH HD Audio (Realtek ALC887 897 Audio Codec) 4 x SATA3, 1 x Hyper M. 2(PCIe Gen4 x4), 1 x M. 2(PCIe Gen3 x2 & SATA3) 8 x USB 3. 2 Gen1 (4 Front, 4 Rear) 6 x USB 2. 0 (4 Front, 2 Rear) Realtek
Supports AMD AM4 Socket Ryzen 3000, 4000 G-Series and 5000 Series Desktop Processors8 Power Phase design
Supports DDR4 4733+ (OC)
1 x PCIe 4.0 x16, 1 x PCIe 3.0 x16, 1 x PCIe 3.0 x1
Supports AMD CrossFireX
Graphics Output Options: HDMI, DisplayPort
7.1 CH HD Audio (Realtek ALC887/897 Audio Codec)
4 x SATA3, 1 x Hyper M.2(PCIe Gen4 x4), 1 x M.2(PCIe Gen3 x2 & SATA3)
8 x USB 3.2 Gen1 (4 Front, 4 Rear)
6 x USB 2.0 (4 Front, 2 Rear)
Realtek Gigabit LAN
Phantom Gaming is designed by gamers and for gamers! Underneath its relentless appearance lie plentiful gaming oriented features and excellent gaming capabilities. It’s all about bringing a new gaming experience to gamers!
8 Power Phase Design
Featuring sturdy components and completely smooth power delivery to the CPU. Plus, it offers enhanced performance with the lowest temperature for advanced gamers.
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.
AMD SMART ACCESS MEMORY
Conventional PC systems processor can only access a fraction of graphics memory and limits system performance. With AMD Smart Access Memory, the data channel gets expanded to harness the full potential of GPU memory, removes the bottleneck and increase performance.
A SOLID M.2-SOLUTION PERFORMER
Dual M.2 For SSD, Supports Type 2280 M.2
Ready for higher capacity and even faster Type 2280 M.2 NVMe SSD to fulfill the need of performance. Hyper M.2 socket that supports PCIe Gen4 x4 while M.2 socket is capable of running PCIe Gen3 x2 and SATA3 mode.
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!
RULE YOUR OWN LIGHTING WAY - POLYCHROME RGB
This motherboard features onboard RGB headers and an addressable RGB header that allow motherboard to be connected to compatible LED devices such as strip, CPU fans, coolers, chassis and so on. Users may also synchronize RGB LED devices across the Polychrome RGB Sync-certified accessories to create their own unique lighting effects.
Dual Graphics Outputs
Complete with two types of most used connectors! Packed with a HDMI + DisplayPort combo, you have more graphics output options now.
HDMI 4k @60Hz
Supports the most recent HDMI 4K 60Hz graphics output specification. With the larger bandwidth and increased frame rate, the motion on your screen becomes more fluid and less blurry.
Specifications
Unique Feature
ASRock Super Alloy
- Premium 50A Power Choke
- Sapphire Black PCB
- High Density Glass Fabric PCB
- 2oz Copper PCB
ASRock Hyper M.2 (PCIe Gen4x4)
ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
ASRock Live Update & APP Shop
CPU
Supports AMD AM4 Socket Ryzen 3000, 4000 G-Series and 5000 Series Desktop 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 (Renoir) 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, +1.8VSB, 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 DisplayPort 1.4 ports by independent display controllers
Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz
Supports DisplayPort 1.4 with max. resolution up to 5K (5120x2880)@120Hz
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 and DisplayPort 1.4 Ports
Supports 4K Ultra HD (UHD) playback with HDMI 2.1 and DisplayPort 1.4 Ports
Supports Microsoft PlayReady
Audio
7.1 CH HD Audio (Realtek ALC887/897 Audio Codec)
Supports Surge Protection
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 (Renoir)
2 x PCI Express x16 Slots (PCIE1: Gen3x16 mode; PCIE3: Gen3 x4 mode)
1 x PCI Express 3.0 x1 Slot
Supports AMD Quad CrossFireX and CrossFireX
Storage
4 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 2280 M.2 PCI Express module up to Gen4x4 (64 Gb/s) (with Matisse) or Gen3x4 (32 Gb/s) (with Renoir)
1 x M.2 Socket (M2_2), supports M Key type 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 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)
3 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 Front Panel Audio Connector
2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports) (Supports ESD Protection)
Rear Panel I/O
1 x PS/2 Mouse/Keyboard Port
1 x HDMI Port
1 x DisplayPort 1.4
4 x USB 3.2 Gen1 Ports (Supports ESD Protection)
2 x USB 2.0 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
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
2 x Screws for M.2 Sockets
Hardware Monitor
Temperature Sensing: CPU, Chassis/Water Pump Fans
Fan Tachometer: CPU, Chassis/Water Pump Fans
Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, Chassis/Water Pump Fans
Fan Multi-Speed Control: CPU, Chassis/Water Pump Fans
Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore, CPU VDDCR_SOC, DRAM, VPPM, +1.8V
Form Factor
Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm
Solid Capacitor design
2oz Copper PCB
OS
Microsoft Windows 10 64-bit
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
4.7 ★★★★★
Based on 12 reviews
Sort
Product Reviews
★★★★★ 5
Foam Mattress NEEDs Foam Pillows
Color: Blue-ice Plus, Size: King(Pack of 2), Color: Blue-ice Plus, Size: King(Pack of 2)
10 stars!! Quality foam, structure & price. Best bang for my buck.
HRV, readiness & total sleep score metrics increased drastically this week. See screenshot :)
Support:
Molds and cushions every crevice under my neck and above shoulders. So comfy
Size:
Adjustable loft but king length is perfect to hug and rest your head. Love love love. The 1st 2 nights were uncomfortable with pillow as is, first night I was up at 3am half asleep pulling foam out but wasn't enough. The second night at 2am I pulled out more stuffing. I was getting frustrated.. my Oura ring showed both nights I was awake every hour. Not good. Before the 3rd night I pulled enough to fill the bag the 2 pillows arrived in. Boom -8hrs sleep and for the first time ii years I achieved 17% Deep sleep. Huge.
Weight:
Perfect weight with adjustment. Squishy and molds to b the contour of my neck and shoulders
Softness:
Like the baby bear.. just right.
Comfort:
Very comfortable after removing 30% foam in both pillows. I actually now have enough to make a 3rd pillow, replace old foam, or adjust OGs, Still to early to measure.
If you have a foam mattress that contours your body but not your head you'll end up with neck and/or back pain from head being elevated- not sinking/molding the body into a foam mattress.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 1, 2025
★★★★★ 3
These are not sized correctly - beware
Color: Blue-ice Plus, Size: King(Pack of 2), Color: Blue-ice Plus, Size: King(Pack of 2)
Edit: I was going to return these pillows but the seller contacted me and offered a full refund due to the size issue without having to send the pillows back.
I am happy with this and happy to keep them on a spare queen size bed as they really are nice pillows. Just the wrong size.
pros: they are a nice pillow and the cooling feature is really great, and you can adjust to your liking
cons: absolutely wrong size. Ordered King, tag says king, all measurements on listing and tag say 20x36, in reality they are more like 20x30. Definitely Queen pillows being sold as King.
I did not see any reviews at first about size issues but after I got these and did a search it does look like others have had the same problem.
A shame, would have given them a great review if they were the correct size
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
★★★★★ 5
Cool and comfy
Color: Blue-ice Plus, Size: King(Pack of 1)
Great pillow. Keeps you cool.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 5
Really Good Cooling Pillows for Sleeping
Color: Blue-ice Plus, Size: Queen(Pack of 2), Color: Blue-ice Plus, Size: Queen(Pack of 2)
These cooling pillows are very soft and provide excellent support for your head and neck. They are adjustable by taking our the stuffing if you need them to be more flat or less firm. The look great and comes in a pack of two which is a great value. During use, I did notice they have great shape retention and it does not take them long to return to their fluffy full shape. I am a hot sleeper and these do keep your head cool - just be aware using a pillow cover does reduce the cool ability but this allows you to adjust for weather like during winters to add a pillow case for extra warmth. Very happy with this purchase and got a second set to replace my old pillows.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 5
Soft and smooth cover
Color: Grey, Size: Body（20"X 54"）
This is a nice pillow cover overall. The fabric feels good and it's comfortable to sleep on, especially compared to a more basic cotton cover. It is maybe a little thinner than I expected, so if you want something thick and heavy this probably isn't that. But for a soft smooth cover that fits and feels decent, I think it's worth it. No major complaints from me after using it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
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