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Here are the details of the Asrock B550 EXTREME4 Motherboard. * Supports 3rd Gen AMD AM4 Ryzen™ / Future AMD Ryzen™ Processors* 14 Power Phase Design, Digi Power, Dr. MOS* 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* AMD CrossFireX™* 7.1 CH HD Audio (Realtek ALC1220 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), 5 USB 3.2 Gen1 (2 Front, 2 Rear, 1 Front Type-C)* Dragon 2.5G LANUnbeatable Heatsink ArmourForged with aluminium alloy heatsink top cover that effectively improves heat dissipation. Underneath its solid strong cover lie two gaming required M.2 Key M sockets for high speed SSDs.Dual M.2 Sockets for SSDHyper M.2 socket that supports PCIe Gen4 x4 while M.2 socket is capable of running PCIe Gen3 x2 and SATA3 mode.Nahimic AudioWhether 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.The Sound Tracker is a visual indicator that points out the directions from which predominant sounds are coming. Each sound is properly positioned in 360° on a radar for a full immersion during the game.Dr. MOSDr.MOS is the integrated power stage solution which is optimised for synchronous buck-set down voltage applications! Compared to traditional discrete MOSFETs, it intelligently delivers higher current for each phase, thus providing improved thermal result and superior performance.Premium 60A Power ChokeCompared to traditional chokes, ASRock's premium 60A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard. Hi-Density Power ConnectorReduces 23% power loss and decreases the connector's temperature by 22 degrees Celsius.8+4 12V Power Connectors24-pin ATX Power Connector2oz Copper PCB2 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 RGBASRock motherboards deliver stunning performance and superior aesthetics to rule your own colourful lighting way! ASRock offers a very comprehensive control to perform the built-in RGB LEDs or the connected LED strips, CPU fans, coolers, chassis and any RGB devices smoothly. Devices can be synchronised across the Polychrome RGB Sync-certified accessories as well.Dragon 2.5 Gb/s LANThe intelligent 2.5Gb/s LAN platform is built for maximum networking performance for the demanding requirements of home networking, content creators, online gamers and high-quality streaming media. Boost networking performance up to 2.5X the bandwidth compared to the standard gigabit Ethernet, you'll enjoy the faster and uncompromised connectivity experience for gaming, file transfers and backups.Reinforced Steel Slot [PCIe 4.0 Version]The reinforced steel slot comes with the next generation PCI Express 4.0 standard. The various benefits include:- Extra anchor points- Stronger latch- Ensure signal stability- Make sure heavy graphics cards to be well-installedFront USB 3.2 Gen1 Type-CFront USB 3.2 Gen1 Type-C header delivers up to 5 Gbps data transfer rate and next generation reversible USB design to the front panel of computer case.Dual USB 3.2 Gen2 (Type-A + Type-C)This motherboard has a pair of onboard Type-A and Type-C USB 3.2 Gen2 ports built on the rear i/o for supporting next generation USB 3.2 Gen2 devices and to deliver up to 10 Gbps data transfer rates.M.2 (KEY E) For WiFiBesides the onboard LAN port, users may also choose 802.11ac wireless connections by M.2 (Key E) slot.*Wi-Fi module is not included.Flexible Integrated I/O ShieldUnlike most so called pre-mounted I/O shield that is only decorated with fancy color schemes. We reserve more tolerance space and allow IO shield is adjustable when installing, thus fitting chassis perfectly without any mechanical issue.Super Alloy MotherboardXXL Aluminum Alloy HeatsinkExtra large aluminium alloy heat sinks that effectively take away heat from the MOSFET and chipset so that your whole system may perform more stable.Premium 60A Power ChokeCompared to traditional chokes, ASRock's premium 60A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.Dr. MOSDr.MOS is the integrated power stage solution which is optimized for synchronous buck-set down voltage applications! Intelligently delivering higher current and driving up to 50A continuous current for each phase, thus providing improved thermal result and superior performance.Premium Memory Alloy ChokeSpecifically designed for memory power delivery, these new alloy chokes feature a highly magnetic and heat resistant design, thus delivering more stable and reliable power to the motherboard and memory modules.Nichicon 12K Black CapsSupreme 12K black capacitors with lifespans of at least 12,000 hours. Compared to other counterparts on high-end motherboards that merely have lifespans of around 10,000 hours, ASRock applied Nichicon 12K Black Caps that offer 20% longer lifespans and provide more stability and reliability.I/O ArmorA new designed protective cover for all of the crucial parts near the motherboard's rear I/O, so that they won't easily be damaged by static electricity.Matte Black PCBA new mysterious matte black and copper color scheme to match the prestigious components on ASRock's high-end motherboards.High Density Glass Fabric PCBHigh Density Glass Fabric PCB design that reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity.2oz Copper PCBUsing only carefully selected copper materials for PCB layers, 2oz Copper PCB delivers lower temperature and higher energy efficiency for overclocking.Gold Audio JacksEverything will wear off in time, but gold looks better! Gold audio jack provides stable sound transmission!Full Spike ProtectionSome sensitive digital components on the motherboard are vulnerable to power surges, the excessive current may cause your system to malfunction immediately. ASRock Full Spike Protection includes various technologies to prevent your motherboard's components from being damaged by these unexpected voltage spikes.Live Update & APP ShopASRock Live Update & APP Shop is designed for your convenience. We provide various apps and support software for users to download. You can also easily optimise your system and keep your motherboard up to date with ASRock Live Update & APP Shop.Specification: Motherboard Type: Desktop Form Factor: ATX Socket: AMD AM4 Chipset: AMD B550 *Note: not compatible with Ryzen 5 3400G & Ryzen 3 3200G CPUs RAM Technology: DDR4 (Dual Channel) RAM Slots: 4 x DIMM RAM Speeds: 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 MHz Maximum Memory: 128GB Graphics: Integrated Graphics Processor*Graphics specifications may vary between CPU types Graphics Ports: 1 x HDMI Multi-GPU Support: Supports AMD Quad CrossFireX and CrossFireX PCI/PCI Express: 1 x PCIe 4.0 x161 x PCIe 3.0 x162 x PCIe 3.0 x1 Storage: 6 x SATA III1 x M.2 (2230/2242/2260/2280) - PCIe1 x M.2 (2230/2242/2260/2280/22110) - SATA & PCIe RAID: RAID 0, 1, 10 Wireless: - LAN: 2.5GB LAN Audio: 7.1 CH HD Audio with Content Protection (Realtek ALC1220 Audio Codec) USB Ports Supported: 2 x USB 3.2 Gen2 (1 Type-A & 1 Type-C at back)4 x USB 3.2 Gen1 (2 at back, 2 at mid-board)8 x USB 2.0 (4 at back, 4 at mid-board)1 x Front Panel Type C USB 3.2 Gen1 Header Back Panel I/O Ports: 2 x Antenna Mounting Points1 x PS/2 Mouse/Keyboard1 x HDMI1 x Optical SPDIF Out1 x USB 3.2 Gen2 Type-A1 x USB 3.2 Gen2 Type-C2 x USB 3.2 Gen14 x USB 2.01 x RJ-45 LANHD Audio Jacks Internal I/O Connectors: 1 x SPI TPM1 x Power LED and Speaker2 x RGB LED2 x Addressable LED1 x CPU Fan1 x CPU/Water Pump Fan5 x Chassis/Water Pump Fan1 x 24 pin ATX1 x 8 pin 12V1 x 4 pin 12V1 x Front Audio2 x USB 2.0 1 x USB 3.2 Gen11 x Dr. Debug with LED1 x Power Button with LED1 x Reset Button with LED1 x Front Panel Type C USB 3.2 Gen1 Header Accessories: Quick Installation Guide, Support CD4 x SATA Data Cables3 x Screws for M.2 Sockets2 x Standoffs for M.2 Sockets Package Weight: 2.2000 kg Manufacturer Warranty: 3 Year Replacement Warranty