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Product Name:Asus MB Prime B550M-A WiFi II AMD B550 AM4 Max.128GB DDR4 MATX Retail **OPEN BOX**Manufacturer Part Number:PRIMEB550MAWIFIIIProduct Type:Desktop MotherboardChipset Manufacturer:AMDChipset Model:B550Number of Memory Slots:4Bluetooth:YesGigabit Ethernet:YesNumber of SATA Interfaces:4Number of PCI Express x1 Slots:2Onboard Video:CPU Dependent VideoRAID Supported:YesNumber of Total Expansion Slots:3Number of PCI Express x16 Slots:1HDMI:YesDVI:YesVGA:YesTotal Number of USB Ports:6Total Number of Onboard USB Ports:6Total Number of PCI Express Slots:3Memory Form Factor:DIMMUDIMMNumber of M.2 Interfaces:2Number of USB 3.2 Ports:6Number of Onboard USB 3.2 Ports:2Memory Technology:DDR4 SDRAMProcessor Socket:Socket AM4Form Factor:Micro ATXProcessor Supported:Ryzen 3Ryzen 5Ryzen 7Ryzen 9Ryzen 5 ProRyzen 7 PRORyzen 9 PRORyzen 3 PROTotal Processor Supported:1Controller Type:Serial ATA/600Maximum Memory Supported:128 GBAudio Channels:7.1Wireless LAN:YesWireless LAN Standard:IEEE 802.11 a/b/g/n/ac/axNumber of Network (RJ-45) Ports:1Number of Onboard USB 2.0 Ports:4Onboard S / PDIF Header:YesMemory Speed Supported:2133 MHz2400 MHz2667 MHz2800 MHz3000 MHz3200 MHz3333 MHz3466 MHz3866 MHz3600 MHz3733 MHz4000 MHz4133 MHz4466 MHz4600 MHz4400 MHz4800 MHz4266 MHz4866 MHz4333 MHzWidth:9.6Depth:9.6Product Model:B550M-A WIFI IIProduct Line:PrimeRAID Levels:0101Brand Compatibility:AMDStock Details:Manufacturer:ASUSManuf Part#:PRIMEB550MAWIFIII