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Ships within 48 hours · Estimated delivery Nov 9 - Nov 14
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
ASRock Motherboard B550 PHANTOM GAMING 4 AC AMD AM4 Ryzen B550 DDR4 128GB PCI Express ATX RetailMPN B550 PHANTOM GAMING 4 AC Gaming Armor Memory 15Mu Gold Contact in DIMM Slots Cooling XXL Aluminum Alloy Heatsink Audio Nahimic Audio Unique Feature ASRock Super Alloy XXL Aluminum Alloy Heatsink Premium 50A Power Choke Sapphire Black PCB High Density Glass Fabric PCB 2oz Copper PCB Intel 802. 11ac WiFi ASRock Steel Slot Gen4 ASRock Hyper M. 2 (PCIe Gen4x4) ASRock POST Status Checker (PSC) ASRock Full Spike Protection (for all USB, Audio, LAN
MPNB550 PHANTOM GAMING 4 AC
Gaming Armor
Memory
- 15Mu Gold Contact in DIMM Slots
Cooling
- XXL Aluminum Alloy Heatsink
Audio
- Nahimic Audio
Unique Feature
ASRock Super Alloy
- XXL Aluminum Alloy Heatsink
- Premium 50A Power Choke
- Sapphire Black PCB
- High Density Glass Fabric PCB
- 2oz Copper PCB
Intel 802.11ac WiFi
ASRock Steel Slot Gen4
ASRock Hyper M.2 (PCIe Gen4x4)
ASRock POST Status Checker (PSC)
ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
ASRock Live Update and APP Shop
CPU
- Supports 3rd Gen AMD AM4 RyzenTM / future AMD RyzenTM Processorsnote1
- Digi Power design
- 8 Power Phase design
Note1: Not compatible with AMD RyzenTM 5 3400G and RyzenTM 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 and 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 and non-ECC, un-buffered memory
- Max. capacity of system memory: 128GBnote2
- Supports Extreme Memory Profile (XMP) memory modules
- 15Mu Gold Contact in DIMM Slots
SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label x is equal to 1 or 2
DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label
Note2: Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows 32-bit OS. For Windows 64-bit OS with 64-bit CPU, there is no such limitation.
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 APUnote1
- DirectX 12, Pixel Shader 5.0
- Shared memory default 2GB. Max Shared memory supports up to 16GB.note2
- Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) at 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
Note1: Actual support may vary by CPU
Note2: The Max shared memory 16GB requires 32GB system memory installed.
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
Wireless LAN
- Intel 802.11ac WiFi Module
- Supports IEEE 802.11a/b/g/n/ac
- Supports Dual-Band (2.4/5 GHz)
- Supports high speed wireless connections up to 433Mbps
- Supports Bluetooth 4.2 + High speed class II
Slots
AMD Ryzen series CPUs (Matisse)
- 2 x PCI Express x16 Slots (PCIE1: Gen4x16 mode, PCIE3: Gen3 x4 mode)note1
AMD Ryzen series APUs
- 2 x PCI Express x16 Slots (PCIE1: Gen3x16 mode, PCIE3: Gen3 x4 mode)note1
- 2 x PCI Express 3.0 x1 Slots
- Supports AMD Quad CrossFireXTM and CrossFireXTM
- 1 x M.2 Socket (Key E) with the bundled WiFi-802.11ac module
Note1: Supports NVMe SSD as boot disks
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 2260/2280/22110 M.2 PCI Express module up to Gen4x4 (64 Gb/s) (with Matisse) or Gen3x4 (32 Gb/s)note1
Note1: Supports NVMe SSD as boot disks
Supports ASRock U.2 Kit
Connector
- 1 x COM Port Header
- 1 x SPI TPM Header
- 1 x Power LED and Speaker Header
- 2 x RGB LED Headersnote1
- 2 x Addressable LED Headersnote2
- 1 x CPU Fan Connector (4-pin)note3
- 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)note4
- 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)
Note1: Support in total up to 12V/3A, 36W LED Strip
Note2: Support in total up to 5V/3A, 15W LED Strip
Note3: The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.
Note4: The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.
CPU_FAN2/WP, CHA_FAN1/WP, CHA_FAN2/WP, CHA_FAN3/WP and CHA_FAN4/WP can auto detect if 3-pin or 4-pin fan is in use.
Rear Panel I/O
- 2 x Antenna Ports
- 1 x PS/2 Mouse/Keyboard Port
- 1 x HDMI Port
- 6 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 (Phantom Gaming Tuning)
- ASRock Polychrome SYNC
- ASRock Key Master
- ASRock XFast LAN
UEFI
- ASRock Full HD UEFI
- ASRock Instant Flash
Note: These utilities can be downloaded from ASRock Live Update and APP Shop.
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 ASRock WiFi 2.4/5 GHz Antennas
- 1 x Screw 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
4.1 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Sun Bum Cool Down After Sun Lotion
Size: 8 Ounce (Pack of 1), Style: Cool Down Lotion
I would give this more stars if I could!
As someone who spends as much time as possible soaking up the sun during the summer, I’ve found a true gem in Sun Bum’s Cool Down After Sun Lotion. This product has become my go-to for post-sun care, and it’s easy to see why—it’s like gold for sun-exposed skin! With its fantastic tropical scent, skin-loving formula, and high ratings on the Yuka app for its all-natural ingredients, this lotion is a standout. Here’s a detailed look at why I highly recommend it for anyone who loves summer adventures.
Ingredients and Yuka Rating
One of the standout features of Sun Bum’s Cool Down After Sun Lotion is its commitment to clean, natural ingredients, which has earned it excellent reviews on the Yuka app. According to the product description, it’s formulated with soothing aloe vera, vitamin E, and coconut oil, all of which work together to hydrate and nourish sun-exposed skin. These ingredients are free from harmful chemicals like parabens, sulfates, and dyes, making it a safe choice for those prioritizing non-toxic skincare. The Yuka app, known for analyzing product safety, rates this lotion highly for its clean, natural composition, which aligns perfectly with my preference for products that are good for both my skin and the environment. This clean formula gives me peace of mind, knowing I’m not applying anything harsh after a long day in the sun.
Scent and Sensory Experience
The scent of this lotion is nothing short of phenomenal—it truly smells like summer in a bottle! The tropical, coconut-adjacent fragrance is light and refreshing, evoking the feeling of a beach vacation. Unlike some overpowering or artificial-smelling products, Sun Bum’s scent is gentle yet nostalgic, making the application process a delight. It’s not just about function; this lotion elevates the entire post-sun care routine with its inviting aroma, which lingers subtly on the skin without being overwhelming.
Performance and Skin Benefits
When it comes to performance, Sun Bum Cool Down After Sun Lotion delivers exceptional results. After hours of playing in the sun—whether swimming, hiking, or lounging on the beach—my skin often feels dry, tight, or slightly irritated. This lotion instantly soothes and cools, providing immediate relief. The lightweight, non-greasy formula absorbs quickly, leaving no sticky residue, which is a huge plus compared to some heavier after-sun products I’ve tried. My skin drinks it up, feeling soft, hydrated, and revitalized after each use. The inclusion of aloe vera helps calm any redness or mild sunburn, while coconut oil and vitamin E lock in moisture, preventing peeling and keeping my skin smooth. I’ve noticed it helps maintain my summer glow without the flakiness that can come from sun exposure.
Texture and Application
The texture of this lotion is a perfect balance—not too thick like a heavy cream, but not runny like some gels. It has a smooth, serum-like consistency that glides onto the skin effortlessly and absorbs in seconds. I appreciate how a little goes a long way, making the 8-ounce bottle last through many applications. For an extra cooling effect, I sometimes store it in the fridge, which feels incredibly refreshing on warm, sun-kissed skin. The lotion applies evenly, and I’ve used it on both my body and face without any issues, even on my sensitive skin.
Durability and Practicality
I’ve been using this lotion consistently throughout the summer, and it’s held up beautifully as part of my daily post-sun routine. The bottle is sturdy and travel-friendly, fitting easily into my beach bag or backpack. While Sun Bum notes that shipping to certain areas like Hawaii or Alaska may be restricted due to alcohol content, I’ve had no issues purchasing it locally or online for mainland use. The formula remains effective even after multiple uses in a single day, and I’ve never experienced any separation or change in texture, which speaks to its quality.
Comparison to Other After-Sun Products
Compared to other after-sun lotions I’ve tried, Sun Bum’s Cool Down stands out for its lightweight feel and natural ingredients. Many gels can feel tacky or sticky, and some creams are too heavy for summer use, but this lotion strikes the perfect balance. Its Yuka-approved clean formula also sets it apart from competitors that may contain questionable chemicals. While some after-sun products focus solely on cooling, Sun Bum’s inclusion of nourishing ingredients like vitamin E and coconut oil makes it a more comprehensive solution for skin recovery.
Pros
Clean Ingredients: High Yuka rating for all-natural, non-toxic formula with aloe vera, vitamin E, and coconut oil.
Fantastic Scent: Tropical, coconut-like fragrance that smells like summer without being overpowering.
Lightweight and Non-Greasy: Absorbs quickly, leaving skin soft and hydrated without stickiness.
Soothing and Hydrating: Calms redness, prevents peeling, and restores moisture after sun exposure.
Versatile: Suitable for face and body, great for sensitive skin, and effective for mild sunburns.
Travel-Friendly: Sturdy bottle perfect for beach bags or travel.
Cons
Price Point: Slightly more expensive than drugstore alternatives, but worth it for the quality and clean ingredients.
Conclusion
Sun Bum Cool Down After Sun Lotion is a must-have for anyone who loves spending time in the sun. Its clean, natural ingredients, delightful tropical scent, and lightweight, hydrating formula make it a standout in post-sun care. My skin absolutely loves it, and the high Yuka rating gives me confidence that I’m using a product that’s good for me and the environment. Whether you’re recovering from a beach day or just need to soothe sun-exposed skin, this lotion delivers on every front. It’s become an essential part of my summer routine, and I highly recommend it to anyone looking for a reliable, skin-loving after-sun product.
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Reviewed in the United States on July 2, 2025
★★★★★ 5
great!
Size: 8 Ounce (Pack of 1), Style: Cool Down Lotion
such an amazing lotion, it makes me feel great after being in the sun for a while, and i love the smell!
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Get it
Size: 8 Ounce (Pack of 1), Style: Cool Down Lotion
Love this stuff. Best recovery from the sun I have found. I am very fair and even with sunscreen sometimes still get a little burnt. My friends who get tan and had a long day in the sun are quick to grab this from me and use it at the end of the day. I highly recommend this for anyone. It’s cooling and hydrating. Repair or maintenance for your skin, it’s great for both options. Lightweight and easy to apply. Hands down, worth it!
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Reviewed in the United States on March 27, 2026
★★★★★ 4
Smells Great and Works Well
Size: 3 Ounce (Pack of 1), Style: Cool Down Lotion
Smells great and goes on really smoothly. Skin felt soft and refreshed after use. It is pretty "liquidy" and can come out of the bottle a little on the quick and messy side, but nothing too terrible.
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Reviewed in the United States on March 9, 2025
★★★★★ 5
Works VERY well, NOT sticky, smells AMAZING!
Size: 16 Ounce (Pack of 1), Style: Cool Down Lotion
So... I had sunburn... very painful across my whole back, top of my forehead & the back of my arms. Stupid, I know... USE SUNBLOCK PEOPLE! However, if u don't because u want "a little color" and end up like me, then I highly recommend this after-sun product. It smells amazing and doesn't leave the sticky residue like green Aloe Vera. After rubbing it in, my hands feel super soft. It gives my skin the hydration it needs so I won't peel (and lose the tan I was desperate for). My personal hack... After the sensitivity of the burn calms, I like keeping a bottle in the fridge for that extra cooling sensation. I love this stuff! Sun Bum is a great product... u should definitely try the sunblock tho, it worked where I applied it! I didn't take a pic for obvious reasons, but when u rub it in, it will dry clear.
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Reviewed in the United States on July 14, 2025