ASRock B550M-ITX/ac AMD AM4 ITX Motherboards

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.


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 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.
CHA_FAN1/WP and CHA_FAN2/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
- 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