MB ASUS ROG STRIX B550-A GAMING B550 AM4 4xDDR4-4600o.c. 1xPCIe4.0x16 HDMI-2.1 DP 6xSATA3R M.2 USB3.2 ATX 90MB15J0-M0EAY0

<P><STRONG>CPU</STRONG><BR>AMD AM4 Socket for AMD Ryzen™ 5000 Series/ 4000 G-Series/ 3000 Series Desktop Processors</P> <P><STRONG>Chipset</STRONG><BR>AMD B550</P> <P><STRONG>Memory</STRONG><BR>3rd Gen AMD Ryzen Processors<BR>4 x DIMM, Max. 128GB, DDR4 5100(O.C)/ 4800(O.C.)/ 4600(O.C)/ 4400(O.C)/ 4133(O.C.)/ 4000(O.C.)/ 3866(O.C.)/ 3600(O.C.)/ 3466(O.C.)/ 3200/ 3000/ 2800/ 2666/ 2400/ 2133 MHz Un-buffered Memory<BR>4 x DIMM, Max. 128GB, DDR4 4600(O.C)/ 4400(O.C)/ 4133(O.C.)/ 4000(O.C.)/ 3866(O.C.)/ 3600(O.C.)/ 3466(O.C.)/ 3200/ 3000/ 2800/ 2666/ 2400/ 2133 MHz Un-buffered Memory<BR>OptiMem II<BR>Dual Channel Memory Architecture<BR>ECC Memory (ECC mode) support varies by CPU</P> <P><STRONG>Graphic</STRONG><BR>1 x HDMI 2.1(4K 60HZ)<BR>1 x DisplayPort 1.2<BR>Integrated Graphics Processor</P> <P><STRONG>Multi-GPU Support</STRONG><BR>Supports AMD 2-Way CrossFireX Technology</P> <P><STRONG>Expansion Slots</STRONG><BR>3rd Gen AMD Ryzen™ Desktop Processors: <BR>1 x PCIe 4.0 x16 (x16 mode)<BR>AMD B550 Chipset: <BR>1 x PCIe 3.0 x16 (x4 mode)<BR>3 x PCIe 3.0 x1</P> <P><STRONG>Storage</STRONG><BR>Total supports 2 x M.2 slot(s) and 6 x SATA 6Gb/s ports<BR>3rd Gen AMD Ryzen™ Processors: <BR>- 1 x M.2_1 socket 3, with M key, type 2242/2260/2280/22110 storage devices support(SATA &amp; PCIe 4.0 x4 mode)<BR>AMD B550 Chipset: <BR>- 1 x M.2_1 socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA &amp; PCIE 3.0 x 4 mode)<BR>Support Raid 0, 1, 10<BR>6 x SATA 6Gb/s port(s)</P> <P><STRONG>LAN</STRONG><BR>Intel® I225-V 2.5Gb Ethernet<BR>ASUS LANGuard</P> <P><STRONG>Audio</STRONG><BR>- Audio Shielding<BR>- Premium Japanese audio capacitors<BR>- Audio Cover<BR>- Optical S/PDIF in port(s) at back panel<BR>ROG SupremeFX8-Channel High Definition Audio CODEC S1220A<BR>- Dual OP Amplifiers<BR>- Impedance sense for front and rear headphone outputs<BR>- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking<BR>- High quality120dBSNR stereo playback outputand113dBSNR recording input<BR>- Supports up to 32-Bit/192kHz playback<BR>Audio Feature:<BR>- SupremeFX Shielding™ Technology<BR>- Gold-plated jacks</P> <P><STRONG>USB Ports<BR></STRONG>Rear USB Port (Total 8): <BR>- 2 x USB 3.2 Gen 2 port(s) (1 x Type-A +1 x USB Type-C®)<BR>- 4 x USB 3.2 Gen 1 port(s) (4 x Type-A)<BR>- 2 x USB 2.0 port(s)<BR>Front USB Port (Total 6): <BR>- 2 x USB 3.2 Gen 1 port(s)<BR>- 4 x USB 2.0 port(s)</P> <P><STRONG>Software Features</STRONG><BR>ROG Exclusive Software: <BR>- RAMCache III<BR>- ROG CPU-Z<BR>- GameFirst VI<BR>- Sonic Studio III + Sonic Studio Virtual Mixer <BR>- Sonic Radar III<BR>- DTS® Sound Unbound <BR>- Overwolf <BR>- Anti-virus software<BR>ASUS Exclusive Software Features: <BR>Armoury Crate<BR>- Aura Creator<BR>- Aura Sync<BR>- AI Noise Cancelling Microphone<BR>AI Suite 3:<BR>- PPSU<BR>&nbsp; EPU<BR>&nbsp; DIGI+ VRM<BR>&nbsp; Fan Xpert 4<BR>&nbsp; TurboV EVO<BR>- EZ update<BR>WinRAR<BR>UEFI BIOS: <BR>ASUS EZ DIY <BR>- ASUS CrashFree BIOS 3 <BR>- ASUS EZ Flash 3 <BR>- ASUS UEFI BIOS EZ Mode</P> <P><STRONG>ASUS Special Features</STRONG><BR>Aura Sync: <BR>- Standard RGB header(s)<BR>- Addressable Gen 2 RGB header(s)<BR>ASUS Q-Design: <BR>- ASUS Q-DIMM<BR>- ASUS Q-LED (DRAM [yellow],CPU [red],&nbsp; VGA [white], Boot Device [yellow green)<BR>- ASUS Q-Slot<BR>ASUS Thermal Solution: <BR>- Aluminum M.2 heatsink<BR>ASUS EZ DIY: <BR>- BIOS FlashBack™ button<BR>- BIOS FlashBack™ LED<BR>- Clear CMOS header<BR>- ProCool<BR>- Pre-mounted I/O shield<BR>- SafeSlot</P> <P><STRONG>Back I/O Ports<BR></STRONG>1 x BIOS FlashBack™ Button(s)<BR>2 x USB 3.2 Gen 2&nbsp; (1 x Type-A+1 x USB Type-C®)<BR>1 x Intel® I225-V 2.5Gb Ethernet<BR>4 x USB 3.2 Gen 1<BR>1 x DisplayPort<BR>1 x HDMI<BR>2 x USB 2.0<BR>1 x Optical S/PDIF out<BR>5 x Gold-plated audio jacks</P> <P><STRONG>Internal I/O Ports</STRONG><BR>1 x AAFP connector<BR>1 x M.2 Socket 1 with M key, type 2242/2260/2280/22110 storage devices support(SATA &amp; PCIe 4.0 x4 mode)<BR>1 x M.2 Socket 2 with M key, type 2242/2260/2280/22110 storage devices support (SATA &amp; PCIE 3.0 x 4 mode)<BR>1 x USB 3.2 Gen 1(up to 5Gbps) connector(s) support(s) additional 2 USB 3.2 Gen 1 port(s)<BR>1 x Thunderbolt header(s)<BR>1 x CPU Fan connector(s)<BR>1 x CPU OPT Fan connector(s)<BR>3 x Chassis Fan connector(s)<BR>1 x AIO_PUMP connector<BR>2 x Aura RGB Strip Header(s)<BR>1 x Addressable Gen 2 header(s)<BR>2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s)<BR>6 x SATA 6Gb/s connector(s)<BR>1 x 24-pin EATX Power connector(s)<BR>1 x 8-pin ATX 12V Power connector(s)<BR>1 x 4-pin ATX 12V Power connector(s)<BR>1 x System panel(s)<BR>1 x Thermal sensor connector(s)<BR>1 x Clear CMOS jumper(s)</P> <P><STRONG>Accessories</STRONG><BR>1&nbsp; x M.2 SSD screw package(s)<BR>1 x M.2 Rubber Package(s)<BR>User´s manual<BR>4 x SATA 6Gb/s cable(s)<BR>1 x Supporting DVD<BR>1 x ROG Strix stickers<BR>1 x Cable ties pack(s)<BR>1 x Extension cable for Addressable LED<BR>1 x ROG Thank you card</P> <P><STRONG>BIOS</STRONG><BR>256 Mb Flash ROM, UEFI AMI BIOS</P> <P><STRONG>Manageability</STRONG><BR>WOL by PME, PXE</P> <P><STRONG>Operating System</STRONG><BR>Windows® 10 64-bit</P> <P><STRONG>Form Factor</STRONG><BR>ATX Form Factor<BR>12 inch x 9.6 inch (30.5 cm x 24.4 cm)</P>