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Description
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, DisplayPortSupports 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
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
15µ 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)
15µ 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
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Hand size mighty grinder
Color: Silver single
Hi- I think this is a good grinder although to this point I ground about 2/3 of the glass chamber full of a good quality peppercorn. I like a coarse grind and this device gives that grind consistently. I like the cover and it's fit. The overall look is pleasing and think it's a good bang for the buck. It's easy to use and adjusts to your personal needs or wants. If your debating this device and am worried if you'll get years of use I know I don't force it but rather learn to allow the tool to do the work. I think it will last me for quite a while and even if I have to replace it once a year it's a well built unit that you can enjoy using. If you have arthritic hands and use this for hard products like fresh peppercorns or coarse Himalayan salt then treat yourself to a good rechargeable grinder (or better yet ask your children to get you one for all the great meals you make for them & have made for them !) Thanks for the read. I hope this helps. Greybeard
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Reviewed in the United States on May 6, 2026
★★★★★ 5
At Last! A Grinder That Can Grind Flaxseed!!!
Color: Silver single
I'm so excited -- my search for a manual flaxseed grinder is over! After spending countless hours -- nay, days & weeks! -- searching for a simple, manual spice grinder that worked well for flaxseeds, I found this little $7 gem! Just got it today & immediately tested it out... with GREAT results! At first I was disappointed to see that the grinding mechanism is plastic, but it sure did the job! It has a little dial to adjust the coarseness, which is nice. Also love that the container is glass; and larger than I thought. Easy to refill & I expect it'll be easy to clean. I think the ease of grinding will depend on how tightly or loosely you adjust the dial; at its tightest, I couldn't twist it at all, but loosening it allowed me to use it easily and it still gave me a fine grind. Highly recommend it... can't beat the value!
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Reviewed in the United States on November 15, 2025
★★★★★ 4
Pepper grinder works as expected, I'm concerned about its long-term durability.
Color: Silver single
Good product, grounds pepper as expected. I was almost surprised that the grinder is plastic rather than metal. I'm not sure of its long-term durability
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Reviewed in the United States on December 14, 2025
★★★★★ 5
Perfect
Color: Silver single, Color: Silver single
Excellent salt grinder
This ceramic grinder surprised me for its good quality. The design is very elegant, with the stainless steel part and the glass jar that allows you to easily see how much product is left inside. It feels solid and well built.
The ceramic grinding mechanism works very smoothly and crushes the salt evenly. In addition, it is easy to refill and clean, which is very practical to use in the kitchen every day.
It has a perfect size: it does not take up much space but has good capacity. Without a doubt it is a very useful and beautiful product for the table or the kitchen. I totally recommend it!
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Buy this
Color: Silver single
Nothing fancy,just functional.Priced right.Very satisfied.
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Reviewed in the United States on May 6, 2026