B550 Taichi

Supports 3^rd Gen AMD AM4 Ryzen™ / future AMD Ryzen™ Processors*
Digi Power design
16 Power Phase design

*Not compatible with AMD Ryzen™ 5 3400G and Ryzen™ 3 3200G.

AM4

AMD B550

Dual Channel DDR4 Memory Technology
4 x DDR4 DIMM Slots
AMD Ryzen series CPUs (Matisse) support DDR4 5000+(OC) / 4933(OC) / 4866(OC) / 4800(OC) / 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*
AMD Next Generation Ryzen series APUs support DDR4 5200+(OC) / 5100(OC) / 5000(OC) / 4933(OC) / 4866(OC) / 4800(OC) / 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: 128GB**
Supports Extreme Memory Profile (XMP) memory modules
15μ Gold Contact in DIMM Slots

**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.

DDR4

3200 / 2933 / 2667 / 2400 / 2133 MHz

4 Slots

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 (4096x2160) @ 60Hz
Supports DisplayPort 1.4 Input with max. resolution up to 5K (5120x2880)@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.

7.1 CH HD Audio with Content Protection (Realtek ALC1220 Audio Codec)
Premium Blu-ray Audio support
Supports Surge Protection
120dB SNR DAC with Differential Amplifier
NE5532 Premium Headset Amplifier for Front Panel Audio Connector (Supports up to 600 Ohm headsets)
Pure Power-In
Direct Drive Technology
PCB Isolate Shielding
Impedance Sensing on Rear Out port
Individual PCB Layers for R/L Audio Channel
Gold Audio Jacks
15μ Gold Audio Connector
Nahimic Audio

AMD Ryzen series CPUs (Matisse)
- 3 x PCI Express x16 Slots (PCIE1/PCIE3/PCIE5: single at Gen4x16 (PCIE1); dual at Gen4x8 (PCIE1) / Gen4x8 (PCIE3); triple at Gen4x8 (PCIE1) / Gen4x8 (PCIE3) / Gen3x4 (PCIE5))*
AMD Ryzen series APUs
- 3 x PCI Express x16 Slots (PCIE1/PCIE3/PCIE5: single at Gen3x16 (PCIE1); dual at Gen3x8 (PCIE1) / Gen3x8 (PCIE3); triple at Gen3x8 (PCIE1) / Gen3x8 (PCIE3) / Gen3x4 (PCIE5))

- 2 x PCI Express 3.0 x1 Slots
- Supports AMD Quad CrossFireX™, 3-Way CrossFireX™ and CrossFireX™
- 1 x Vertical M.2 Socket (Key E) with the bundled WiFi-802.11ax module (on the rear I/O)
- 15μ Gold Contact in VGA PCIe Slot (PCIE1)

*If PCIE2 or PCIE4 is occupied, PCIE5 will downgrade to x2 mode.
Supports NVMe SSD as boot disks

4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug
4 x SATA3 6.0 Gb/s Connectors by ASMedia ASM1061, support NCQ, AHCI and Hot Plug
1 x Hyper M.2 Socket (M2_1), supports M Key type 2242/2260/2280 M.2 PCI Express module up to Gen4x4 (64 Gb/s) (with Matisse) or Gen3x4 (32 Gb/s)*
1 x Ultra M.2 Socket (M2_2), supports M Key type 2242/2260/2280/22110 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x4 (32 Gb/s)*

*Supports NVMe SSD as boot disks
Supports ASRock U.2 Kit

1 x Power LED and Speaker Header
2 x RGB LED Headers*
2 x Addressable LED Headers**
1 x CPU Fan Connector (4-pin)***
1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)***
5 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)****
1 x 24 pin ATX Power Connector (Hi-Density Power Connector)
2 x 8 pin 12V Power Connectors (Hi-Density Power Connector)
1 x Front Panel Audio Connector (15μ Gold Audio Connector)
2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports) (ASMedia ASM1074 hub) (Supports ESD Protection)
1 x Front Panel Type C USB 3.2 Gen2 Header (Supports ESD Protection)
1 x Dr. Debug with LED
1 x Power Button with LED
1 x Reset Button with LED
1 x Clear CMOS Button

*Support in total up to 12V/3A, 36W LED Strip
**Support in total up to 5V/3A, 15W LED Strip
***The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.
***CPU_FAN2/WP_3A supports the water cooler fan of maximum 3A (36W) fan power.
****The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.
CPU_FAN2/WP_3A, CHA_FAN1/WP, CHA_FAN2/WP, CHA_FAN3/WP, CHA_FAN4/WP and CHA_FAN5/WP can auto detect if 3-pin or 4-pin fan is in use.

2 x Antenna Ports
1 x HDMI Port
1 x DisplayPort 1.4
1 x Optical SPDIF Out Port
1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) (Supports ESD Protection)
1 x USB 3.2 Gen2 Type-C Port (10 Gb/s) (Supports ESD Protection)
4 x USB 3.2 Gen1 Ports (Supports ESD Protection)*
2 x USB 2.0 Ports (Supports ESD Protection)
1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
1 x Clear CMOS Button
1 x BIOS Flashback Button
HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks)

*Ultra USB Power is supported on USB3_1_2 ports.
ACPI wake-up function is not supported on USB3_1_2 ports.

2.5 Gigabit LAN 10/100/1000/2500 Mb/s
GigaLAN Intel^® I225V
Supports Wake-On-LAN
Supports Lightning/ESD Protection
Supports Energy Efficient Ethernet 802.3az
Supports PXE

Intel^® 802.11ax WiFi Module
Supports IEEE 802.11a/b/g/n/ax
Supports Dual-Band (2.4/5 GHz)
Supports WiFi6 802.11ax (2.4Gbps)
2 antennas to support 2 (Transmit) x 2 (Receive) diversity technology
Supports Bluetooth 5.1 + High speed class II
Supports MU-MIMO

ATX Form Factor: 12.0-in x 9.6-in, 30.5 cm x 24.4 cm
2oz Copper PCB

Temperature Sensing: CPU, CPU/Water Pump, Chassis/Water Pump Fans
Fan Tachometer: CPU, CPU/Water Pump, Chassis/Water Pump Fans
Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, CPU/Water Pump, Chassis/Water Pump Fans
Fan Multi-Speed Control: CPU, CPU/Water Pump, Chassis/Water Pump Fans
Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore, CPU VDDCR_SOC, DRAM, CPU VDD 1.8V

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, VTT_DDR Offset, CPU VDD 1.8 Voltage Multi-adjustment

ASRock USB 3.2 Gen2
- ASRock Front Panel Type C USB 3.2 Gen2 Header (10 Gb/s)
- ASRock USB 3.2 Gen2 Type-A Port (10 Gb/s)
- ASRock USB 3.2 Gen2 Type-C Port (10 Gb/s)
ASRock Super Alloy
- XXL Aluminum Alloy Heatsink
- Premium 60A Power Choke
- 50A Dr.MOS
- Premium Memory Alloy Choke (Reduces 70% core loss compared to iron powder choke)
- Nichicon 12K Black Caps (100% Japan made high quality conductive polymer capacitors)
- I/O Armor
- Matte Black PCB
- High Density Glass Fabric PCB
- 2oz Copper PCB
Intel^® 2.5G LAN
Intel^® 802.11ax WiFi
ASRock Steel Slot Gen4
ASRock Full Coverage M.2 Heatsink
ASRock Hyper M.2 (PCIe Gen4x4)
ASRock Ultra USB Power
ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
ASRock Live Update & APP Shop

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.

Microsoft^® Windows^® 10 64-bit