ASRock B660M STEEL LEGEND Motherboard, Intel Socket 1700, 12th Gen, DDR4, Micro ATX, 9 Phase Dr.MOS Power Design, 1x PCIe 5.0 x16, 2x PCIe 3.0 x1, 1x M.2 Key-E for WiFi, 6x USB 3.2 Gen1, Dragon 2.5G LAN, HDMI, DisplayPort

Supports 12th Gen Intel Core Processors (LGA1700)
9 Phase Dr.MOS Power Design
Supports DDR4 5000MHz (OC)
1 PCIe 5.0 x16, 2 PCIe 3.0 x1
1 M.2 Key-E for WiFi
Graphics Output Options: HDMI, DisplayPort
Realtek ALC897 7.1 CH HD Audio Codec, Nahimic Audio
6 SATA3
1 Hyper M.2 (PCIe Gen4 x4)
1 Hyper M.2 (PCIe Gen4 x4 & SATA3)
1 Front USB 3.2 Gen2x2 Type-C
6 USB 3.2 Gen1 (4 Rear, 2 Front)
6 USB 2.0 (2 Rear, 4 Front)
Dragon 2.5G LAN

Steel Legend represents the philosophical state of rock-solid durability and irresistible aesthetics. Built around most demanding specs and features, the Steel Legend series aims at daily users and mainstream enthusiasts! Providing a strong array of materials/components to ensure a stable and reliable performance.

Optimized VRM Design
Dr.MOS is the integrated power stage solution which is optimized for synchronous buck-set down voltage applications! Compared to traditional discrete MOSFETs, it intelligently delivers higher current for each phase, thus providing improved thermal result and superior performance.

PCIe 5.0 + Surface-Mount Tech
Compares to conventional DIP style PCIe slot, the SMT type PCIe slot improves signal flow and maximize stability under high speed, a key breakthrough to fully support the lighting speed of the latest PCIe 5.0 standard.
The latest PCI Express 5.0 is capable to perform a breathtaking bandwidth of 128GBps, ready to unleash the full potential of future high end graphic cards.

Nahimic Audio
Whether you are using headphones, a headset, external or internal speakers, via USB, Wi-Fi, analog output or even HDMI, Nahimic Audio offers you the most engaging listening experience, vibrant and rich with details.

POLYCHROME RGB
In addition to the built-in RGB illumination, it also features onboard RGB headers and an addressable RGB header that allow motherboard to be connected to compatible LED devices such as strip, CPU fans, coolers, chassis and so on. Users may also synchronize RGB LED devices across the Polychrome RGB Sync-certified accessories to create their own unique lighting effects.

High Speed M.2 Solution
This motherboard is capable of accomadating multiple M.2 storage devices, one of which can support PCI Express 4.0 M.2 SSD, it is capable of performing twice the speed compared to previous 3rd generation, giving a lightning fast data transferring experience.

Dragon 2.5 Gb/s LAN>
The intelligent 2.5Gb/s LAN platform is built for maximum networking performance for the demanding requirements of home networking, content creators, online gamers and high-quality streaming media. Boost networking performance up to 2.5X the bandwidth compared to the standard gigabit Ethernet, you?ll enjoy the faster and uncompromised connectivity experience for gaming, file transfers and backups.

Base Frequency Boost (BFB) Technology
BFB Technology allow the use of increasing TDP to enjoy the base frequency boost with the hidden power of processors with users' non K series CPUs and ASRock?s selected 600 series motherboards

While ASRock BFB breathes life into non K series CPUs, the boost frequency currently still depends on the cooling system applied on your rig.

Front USB 3.2 Gen2x2 Type-C
The latest USB 3.2 Gen2x2 Type-C delivers up to 20 Gbps data transfer rate which is 2x as fast as previous generation, providing a blazing fast data transfer interface with reversible USB Type-C design that fits the connector either way.

BIOS Flashback
Get the most convenient BIOS flashing with just a simple click. Users can easily achieve the latest BIOS support with a USB and power supply, No CPU, RAM or other components required.

M.2 (KEY E) For WiFi
Besides the onboard LAN port, users may also choose 802.11ac wireless connections by M.2 (Key E) slot.
*Wi-Fi module is not included.

Specification

Unique Feature
ASRock USB 3.2 Gen2
- ASRock Front Panel Type-C USB 3.2 Gen2x2 Header (20 Gb/s)
ASRock Super Alloy
- Premium Power Choke
- 50A Dr.MOS
- Premium Memory Alloy Choke (Reduces 70% core loss compared to iron power choke)
- Nichicon 12K Black Caps (100% Japan made high quality conductive polymer capacitors)
- Matte Black PCB
- High Density Glass Fabric PCB
- 2oz Copper PCB
2.5G LAN
ASRock Steel Slot
ASRock Full Coverage M.2 Heatsink
ASRock Hyper M.2 (PCIe Gen4x4)
ASRock POST Status Checker (PSC)
ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
ASRock Live Update & APP Shop

CPU
Supports 12th Gen Intel Core Processors (LGA1700)
Digi Power design
9 Power Phase design
Supports Intel Hybrid Technology
Supports Intel Turbo Boost Max 3.0 Technology

Chipset
Intel B660

Memory
Dual Channel DDR4 Memory Technology
4 x DDR4 DIMM Slots
Supports DDR4 non-ECC, un-buffered memory up to 5333+(OC)
Supports ECC UDIMM memory modules (operate in non-ECC mode)
Max. capacity of system memory: 128GB
Supports Intel Extreme Memory Profile (XMP) 2.0
15æ Gold Contact in DIMM Slots

BIOS
128Mb AMI UEFI Legal BIOS with multilingual GUI support
ACPI 6.0 Compliant wake up events
SMBIOS 2.7 Support
CPU Core/Cache, CPU GT, DRAM, VDD_IMC, VCCIN AUX, +1.05V PROC, +1.8V PROC, +0.82V PCH, +1.05V PCH Voltage Multi-adjustment

Graphics
Intel Xe Graphics Architecture (Gen 12)
Dual graphics output: support HDMI and DisplayPort 1.4 ports by independent display controllers
Supports HDMI 2.1 TMDS Compatible with max. resolution up to 4K x 2K (4096x2160) @ 60Hz
Supports DisplayPort 1.4 with DSC (compressed) max. resolution up to 8K (7680x4320) @ 60Hz / 5K (5120x3200) @ 120Hz
Supports HDCP 2.3 with HDMI 2.1 TMDS Compatible and DisplayPort 1.4 Ports

Audio
7.1 CH HD Audio (Realtek ALC897 Audio Codec)
Supports Surge Protection
Gold Audio Jacks
Nahimic Audio

LAN
2.5 Gigabit LAN 10/100/1000/2500 Mb/s
Dragon RTL8125BG
Supports Dragon 2.5G LAN Software
Smart Auto Adjust Bandwidth Control
Visual User Friendly UI
Visual Network Usage Statistics
Optimized Default Setting for Game, Browser, and Streaming Modes
User Customized Priority Control
Supports Wake-On-LAN
Supports Lightning/ESD Protection
Supports Energy Efficient Ethernet 802.3az
Supports UEFI PXE

Slots
CPU:
- 1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode
Chipset:
- 2 x PCIe 3.0 x1 Slots (PCIE2 and PCIE3)
- 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module and Intel© CNVi (Integrated WiFi/BT)

15æ Gold Contact in VGA PCIe Slot (PCIE1)

Storage
CPU:
- 1 x Hyper M.2 Socket (M2_1, Key M), supports type 2242/2260/2280 PCIe Gen4x4 (64 Gb/s) mode
Chipset:
- 1 x Hyper M.2 Socket (M2_2, Key M), supports type 2280 SATA3 6.0 Gb/s & PCIe Gen4x4 (64 Gb/s) modes
- 4 x SATA3 6.0 Gb/s Connectors
ASMedia ASM1061:
- 2 x SATA3 6.0 Gb/s Connectors

RAID
Supports RAID 0, RAID 1, RAID 5 and RAID 10 for SATA storage devices

Connector
1 x SPI TPM Header
1 x Chassis Intrusion and Speaker Header
1 x RGB LED Header
3 x Addressable LED Headers
1 x CPU Fan Connector (4-pin)
1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)
3 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)
1 x 24 pin ATX Power Connector (Hi-Density Power Connector)
1 x 8 pin 12V Power Connector (Hi-Density Power Connector)
1 x Front Panel Audio Connector
2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports) (Supports ESD Protection)
1 x Front Panel Type C USB 3.2 Gen2x2 Header (20 Gb/s) (Supports ESD Protection)

Rear Panel I/O
3 x Antenna Mounting Points
1 x PS/2 Mouse/Keyboard Port
1 x HDMI Port
1 x DisplayPort 1.4
1 x Optical SPDIF Out Port
4 x USB 3.2 Gen1 Ports (ASMedia ASM1074 hub) (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 BIOS Flashback Button
HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks)

Software and UEFI
Software
- ASRock Motherboard Utility (A-Tuning)
- ASRock Polychrome SYNC
UEFI
- ASRock EZ Mode
- ASRock Full HD UEFI
- ASRock My Favorites in UEFI
- ASRock Instant Flash
- ASRock Internet Flash
- ASRock Easy RAID Installer

Support CD
Drivers, Utilities, AntiVirus Software (Trial Version)

Accessories
Quick Installation Guide, Support CD, I/O Shield
2 x SATA Data Cables
3 x Screws for M.2 Sockets
1 x Standoff for M.2 Socket

Hardware Monitor
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
CASE OPEN detection
Voltage monitoring: CPU Vcore, +1.05V_PCH, DRAM, VCCIN AUX, VCCSA, +1.05V PROC, +0.82V PCH, +12V, +5V, +3.3V

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

OS
Microsoft Windows 10 64-bit / 11 64-bit