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ASRock B660M STEEL LEGEND LGA 1700 Intel B660 SATA 6Gb/s DDR4 Micro ATX Motherboard

In stock. Limit 10 per customer.
Ships from United States.
  • B660 PRO RS
  • B660 STEEL LEGNED
  • B660M-HDV
  • B660M-HDVP/D5
  • B660M-ITX/AC
  • B660M PHANTOM GAMING 4
  • B660M PRO RS
  • B660M STEEL LEGEND
  • Supports 13th / 12th Gen Intel Core Processors, Intel Pentium Gold, Celeron Processors
  • 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
  • *May require a BIOS update to boot the 13th gen Intel® Core™ desktop processors.*
Specs
Reviews

Learn more about the ASRock B660M STEEL LEGEND

Best Seller Ranking #64 in Intel Motherboards
Model
Brand ASRock
Model B660M STEEL LEGEND
Supported CPU
CPU Socket Type LGA 1700

* Dedicated LGA1700 mounting bracket is required.
CPU Type Supports 13th / 12th Gen Intel Core Processors, Intel Pentium Gold, Celeron Processors
*May require a BIOS update to boot the 13th gen Intel® Core™ desktop processors.*
Supported CPU Technologies Turbo Boost Technology 3.0
Chipsets
Chipset Intel B660
Onboard Video
Onboard Video Chipset Supported only by CPU with integrated graphic
Memory
Number of Memory Slots 4x288pin (DDR4)
Memory Standard DDR4 up to 5000+(OC)*

* Supports DDR4 3200 natively.
* Please refer to Memory Support List on ASRock's website for more information. (http://www.asrock.com/)
Maximum Memory Supported 128GB
Channel Supported Dual Channel
Expansion Slots
PCI Express 5.0 x16 1 x PCI Express 5.0 x16*

* Supports NVMe SSD as boot disks.
PCI Express x1 2 x PCI Express 3.0 x1
Other Slots 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module and Intel CNVi (Integrated WiFi/BT)
15µ Gold Contact in VGA PCIe Slot (PCIE1)
Storage Devices
SATA 6Gb/s 6 x SATA 6Gb/s*

* If M2_2 is occupied by a SATA-type M.2 device, SATA3_0 will be disabled.
M.2 1 x Hyper M.2 Socket (M2_1, Key M), supports type 2242/2260/2280 PCIe Gen4x4 (64 Gb/s) mode*

1 x Hyper M.2 Socket (M2_2, Key M), supports type 2280 SATA3 6.0 Gb/s & PCIe Gen4 x4 (64 Gb/s) mode*

* Supports Intel Optane Technology (M2_2 only).
* Supports Intel Volume Management Device (VMD).
* Supports NVMe SSD as boot disks.
* Supports ASRock U.2 Kit.
Intel Optane Ready Yes
SATA RAID 0/1/5/10
Onboard Audio
Audio Chipset Realtek ALC897
Audio Channels 7.1 Channels
Onboard LAN
LAN Chipset Dragon RTL8125BG
Max LAN Speed 10/100/1000/2500Mbps
Rear Panel Ports
Back I/O Ports 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)
Internal I/O Connectors
Onboard USB 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)
Other Connectors 1 x SPI TPM Header
1 x Chassis Intrusion and Speaker Header
1 x RGB LED Header
* Supports in total up to 12V/3A, 36W LED Strip.
3 x Addressable LED Headers
* Support in total up to 5V/3A, 15W LED Strip.
1 x CPU Fan Connector (4-pin)
* The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.
1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)
* The CPU/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.
3 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)
* The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.
* CPU_FAN2/WP, CHA_FAN1~3/WP can auto detect if 3-pin or 4-pin fan is in use.
1 x Front Panel Audio Connector
Physical Spec
Form Factor Micro ATX
LED Lighting RGB
Dimensions (W x L) 9.6" x 9.6"
Power Pin 1 x 24 pin ATX Power Connector (Hi-Density Power Connector)
1 x 8 pin 12V Power Connector (Hi-Density Power Connector)
Windows Compatibility
Windows 11 Ready
Features
Features 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

BIOS Feature:
- 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

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

Software and UEFI:
Software
- ASRock Motherboard Utility (A-Tuning)
- ASRock Polychrome SYNC
* These utilities can be downloaded from ASRock Live Update & APP Shop.
UEFI
- ASRock EZ Mode
- ASRock Full HD UEFI
- ASRock My Favorites in UEFI
- ASRock Instant Flash
- ASRock Internet Flash
- ASRock Easy RAID Installer

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

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

Certifications:
- FCC, CE
- ErP/EuP ready (ErP/EuP ready power supply is required)
Packaging
Package Contents 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
Additional Information
Date First Available March 04, 2022

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details

Return Policies

    We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1, 2022 and December 25, 2022 you will have until January 31, 2023 to return your product. There's nothing additional that you have to do!
  • Return for refund until: January 31, 2023
  • Return for replacement until: January 31, 2023
  • This item is covered by Newegg.com's Extended Holiday Return Policy. Read full return policy for details.
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