Description
B550M-ITX/ac
- Supports AMD AM4 Socket Ryzen™ 3000, 4000 G-Series and 5000 Series Desktop Processors*
- Supports DDR4 4733+ (OC)
- 1 PCIe 4.0 x16
- Graphics Output: DisplayPort, HDMI
- 7.1 CH HD Audio (Realtek ALC887 Audio Codec)
- 4 SATA3, 1 Hyper M.2 (PCIe Gen4 x4 & SATA3)
- 6 USB 3.2 Gen1 (2 Front, 3 Rear Type-A, 1 Rear Type-C)
- Realtek Gigabit LAN
- Intel® 802.11ac WiFi + BT 4.2
| Unique Feature | ASRock Super Alloy – Premium 60A Power Choke – 50A Dr.MOS – Sapphire Black PCB – High Density Glass Fabric PCB Intel® 802.11ac WiFi ASRock Full Coverage M.2 Heatsink 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 – 2 x DDR4 DIMM Slots – AMD Ryzen series CPUs (Matisse) support DDR4 4600+(OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(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: 64GB** – Supports Extreme Memory Profile (XMP) memory modules – 15μ Gold Contact in DIMM Slots SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label **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, +1.8VSB, VDDP 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 (4096×2160) @ 60Hz – Supports DisplayPort 1.4 Input with max. resolution up to 5K (5120×2880)@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 *Actual support may vary by CPU
**The Max shared memory 16GB requires 32GB system memory installed. |
| Audio | – 7.1 CH HD Audio (Realtek ALC887 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 |
| 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) – 1 x PCI Express 4.0 x16 Slot (PCIE1: x16 mode)* AMD Ryzen series APUs (Renoir) – 1 x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)* – 1 x Vertical M.2 Socket (Key E) with the bundled WiFi-802.11ac PCIe WiFi module (on the rear I/O) *Supports PCIe riser cards to extend x8/x8 slots
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 2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen4x4 (64 Gb/s) (with Matisse) or Gen3x4 (32 Gb/s) (with Renoir)** *Supports NVMe SSD as boot disks
Supports ASRock U.2 Kit |
| Connector | – 1 x RGB LED Header* – 1 x Addressable LED Header** – 1 x CPU Fan Connector (4-pin)*** – 2 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 – 1 x USB 2.0 Header (Supports 2 USB 2.0 ports) (Supports ESD Protection) – 1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports) (Supports ESD Protection) *Supports in total up to 12V/3A, 36W LED Strip
**Supports in total up to 5V/3A, 15W LED Strip ***The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power. ****The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power. |
| Rear Panel I/O | – 2 x Antenna Ports – 1 x PS/2 Mouse/Keyboard Port – 1 x HDMI Port – 1 x DisplayPort 1.4 – 2 x USB 2.0 Ports (Supports ESD Protection) – 3 x USB 3.2 Gen1 Type-A Ports (Supports ESD Protection) – 1 x USB 3.2 Gen1 Type-C Port (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 – ASRock XFast LAN UEFI – ASRock Full HD UEFI – ASRock Instant Flash *These utilities can be downloaded from ASRock Live Update & APP Shop.
|
| Support CD | – Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar |
| Hardware Monitor | – Quick Installation Guide, Support CD, I/O Shield – 2 x SATA Data Cables – 2 x ASRock WiFi 2.4/5 GHz Antennas |
| Accessories | – 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 |
| Form Factor | – Mini-ITX Form Factor: 6.7-in x 6.7-in, 17.0 cm x 17.0 cm – Solid Capacitor design |
| OS | – Microsoft® Windows® 10 64-bit |
| Certifications | – FCC, CE – ErP/EuP ready (ErP/EuP ready power supply is required) |
| Warranty | 3 Years |
