Micron Technology, Inc.
Micron Technology, Inc. MT4JTF12864AZ-1G4D1 1GB DDR3 1333 Desktop RAM
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ASUS
ASUS PRIME B860M-A WIFI-CSM B860 LGA 1851 mATX Intel motherboard
Micro-ATX board for Intel Core Ultra Series 2 with 192GB DDR5, Wi-Fi 6E, 2.5Gb Ethernet and 20Gbps USB-C
- CPU Socket TypeLGA 1851
- CPU TypeSupport Intel® Core™ Ultra Processors (Series 2) , LGA1851*
- ChipsetIntel B860
- Number of Memory Slots4x288pin (DDR5)
- Memory Standard4 x DIMM slots, max. 192GB, DDR5 Supports up to 8400+MT/s (O
- Maximum Memory Supported192GB
- LGA 1851 socket readies the board for Intel Core Ultra Series 2 processors
- 7+1+1+1 80A DrMOS stages deliver stable power for demanding workloads
- PCIe 5.0 M.2 slot with heatsink enables high-speed storage
- WiFi 6E and 2.5Gb Ethernet provide fast wired and wireless connectivity
- Rear USB 20Gbps Type-C port adds ultrafast external bandwidth
Ready for Intel Core Ultra Series 2
The ASUS PRIME B860M-A WIFI-CSM is a micro-ATX motherboard built on the Intel B860 chipset with an LGA 1851 socket. It supports Intel Core Ultra Processors Series 2 and provides a 7+1+1+1 80A DrMOS power design for stable delivery. Four DDR5 DIMM slots accept up to 192 GB of memory with XMP and AEMP III support.
AI PC platform with fast I/O
The board suits builders who want a compact platform ready for advanced AI workloads and high-speed peripherals. It offers one PCIe 5.0 x16 slot, one PCIe 4.0 x16 slot running at x4, WiFi 6E, 2.5Gb Ethernet, rear USB 20Gbps Type-C, front USB 10Gbps Type-C and two M.2 slots with one heatsink. Buyers needing more than two M.2 drives or a full-size ATX layout should consider other models.
PCIe 5.0 M.2 slot for top storage speed
The primary M.2_1 slot connects through PCIe 5.0 x4 and supports 2242, 2260 and 2280 form factors, giving the highest available throughput for a single drive on this platform. The second M.2 slot runs at PCIe 4.0 speeds. This distinction decides whether the board matches a build centred on the fastest current storage.
Highlights
- LGA 1851 socket readies the board for Intel Core Ultra Series 2 processors
- 7+1+1+1 80A DrMOS stages deliver stable power for demanding workloads
- PCIe 5.0 M.2 slot with heatsink enables high-speed storage
- WiFi 6E and 2.5Gb Ethernet provide fast wired and wireless connectivity
- Rear USB 20Gbps Type-C port adds ultrafast external bandwidth
Specifications
| Brand | ASUS |
|---|---|
| Series | Prime |
| Model | PRIME B860M-A WIFI-CSM |
| Part Number | 90MB1JY0-M0AAYC |
| CPU Socket Type | LGA 1851 |
| CPU Type | Support Intel® Core™ Ultra Processors (Series 2) , LGA1851* Supports Intel® Turbo Boost Technology 2.0 and Intel® Turbo Boost Max Technology 3.0** * Refer to https://www.asus.com/support/download-center/ for CPU support list. ** Intel® Turbo Boost Max Technology 3.0 support depends on the CPU types. |
| Chipset | Intel B860 |
| Number of Memory Slots | 4x288pin (DDR5) |
| Memory Standard | 4 x DIMM slots, max. 192GB, DDR5 Supports up to 8400+MT/s (OC), Non-ECC,Un-buffered ,Clocked Unbuffered DIMM (CUDIMM)* Dual channel memory architecture DIMM Fit Supports Intel® Extreme Memory Profile (XMP) memory module ASUS Enhanced Memory Profile III(AEMPIII) * Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/download-center/. * Non-ECC, un-buffered DDR5 memory su |
| Maximum Memory Supported | 192GB |
| Channel Supported | Dual Channel |
| PCI Express 5.0 x16 | 1 x PCI Express 5.0 x16 |
| PCI Express 4.0 x16 | 1 x PCIe 4.0 x16 slot (supports x4 mode) 1 x PCIe 4.0 x1 slot - To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals. |
| Serial ATA (SATA) | 4 x SATA 6Gb/s |
| M.2 | Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports* Intel® Core™ Ultra Processors (Series 2) * M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode) |
| SATA RAID | 0/1/5/10 |
| Audio Channels | Realtek 7.1 Surround Sound High Definition Audio CODEC* - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking - Supports up to 24-Bit/192 kHz playback Audio Features - Audio Shielding - Premium audio capacitors - Dedicated audio PCB layers ** A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output. |
| Max LAN Speed | 1 x Realtek 2.5Gb Ethernet ASUS LANGuard |
| Wireless LAN | Wi-Fi 6E 2x2 Wi-Fi 6E (802.11ax) Supports 2.4/5/6GHz frequency band* Bluetooth® v5.3** * WiFi 6E 6GHz regulatory may vary between countries, supported only in Windows 11 or later ** The Bluetooth® version may vary, please refer to the Wi-Fi module manufacturer's website for the latest specifications. |
| Bluetooth | Yes |
| Back I/O Ports | 1 x USB 20Gbps port (1 x USB Type-C®) 1 x USB 10Gbps port (1 x Type-A) 2 x USB 5Gbps ports (2 x Type-A) 4 x USB 2.0 ports (4 x Type-A ) 2 x DisplayPort 1 x HDMI™ port 1 x Wi-Fi module 1 x Realtek 2.5Gb Ethernet port 3 x Audio jacks |
| Other Connectors | Fan and Cooling Related 1 x 4-pin CPU Fan header 1 x 4-pin CPU OPT Fan header 1 x 4-pin AIO Pump header 3 x 4-pin Chassis Fan headers Power Related 1 x 24-pin Main Power connector 1 x 8-pin +12V CPU Power connector Storage Related 2 x M.2 slots (Key M) 4 x SATA 6Gb/s ports USB 1 x USB 10Gbps connector (supports USB Type-C® ) 1 x USB 5Gbps header supports 2 additional USB 5Gbps ports 1 x USB 2.0 header supports 2 additional USB 2.0 ports Miscellaneous 3 x Addressable Gen 2 headers 1 x Aura RGB header 1 x Clear CMOS header 1 x Chassis Intrusion header 1 x COM Port header 1 x Front Pane |
| Windows 11 | Windows 11 (22H2 & later), Windows 10 64-bit(21H2 & later) |
| Form Factor | Micro ATX |
| Dimensions (W x L) | 9.6 inch x 9.6 inch (24.4 cm x 24.4 cm) |
| Features | ASUS 5X PROTECTION III - DIGI+ VRM (- Digital power design with DrMOS) - ESD Guards - LANGuard - Overvoltage protection - Stainless-steel back I/O ASUS Q-Design - Q-Antenna - Q-Dashboard - Q-DIMM - Q-LED Core - Q-Slot ASUS Thermal Solution - M.2 heatsink - VRM heatsink design ASUS EZ DIY - ProCool - Pre-mounted I/O shield Aura Sync - Aura RGB header - Addressable Gen2 headers |
| Shipping weight | 1.20 kg |
| Package size | 279 × 279 × 76 mm |
Questions about this item
Will this board fit a standard micro-ATX case and what CPU power connector is required?
The micro-ATX form factor fits standard cases and the board uses a single 8-pin ProCool connector for CPU power.
Which M.2 slot runs at PCIe 5.0 speeds and is a heatsink included?
The M.2_1 slot supports PCIe 5.0 x4 mode and comes with a dedicated M.2 heatsink.
What is the maximum DDR5 capacity and speed this motherboard can handle?
Four slots support up to 192 GB of DDR5 and speeds up to 8400 MT/s when overclocked.
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