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Micron Technology, Inc. MT4JTF12864AZ-1G4D1 1GB DDR3 1333 Desktop RAM
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ASUS
ASUS PRO B860M-CT-CSM Intel motherboard
mATX board for Intel Core Ultra Series 2 processors with DDR5 memory up to 8666 MT/s, PCIe 5.0 x16 slot, dual M.2 slots, four SATA ports, 1 GbE LAN and onboard TPM
- CPU Socket TypeLGA 1851
- CPU TypeIntel Core Ultra Processors (Series 2)
- ChipsetIntel B860
- Number of Memory Slots4x288pin (DDR5)
- Memory StandardSupports up to 8666+ MT/s(OC)
- Maximum Memory Supported256GB
- Supports Intel Core Ultra Series 2 processors via LGA 1851 socket
- DDR5 memory up to 8666 MT/s across four slots with 256 GB capacity
- PCIe 5.0 x16 and M.2 5.0 x4 slots for high-speed expansion
- Intel 1 Gbps LAN plus Realtek 7.1 surround audio for connectivity and sound
- ASUS CSM programme with Control Center Express and TPM for business manageability
Business-Ready LGA 1851 mATX Board
The ASUS PRO B860M-CT-CSM is a micro-ATX motherboard built for Intel Core Ultra Series 2 processors on the LGA 1851 socket. It targets commercial deployments that require long-term supply stability and integrated IT management tools. The board delivers the B860 chipset feature set in a compact form factor suitable for space-constrained workstations.
Thermals and Power in Daily Operation
The platform runs cool under typical office workloads thanks to the efficient B860 chipset and quality voltage-regulation components. Fan headers allow quiet cooling curves that keep acoustic output low during standard productivity tasks. Power draw remains modest with non-K series CPUs, keeping operational costs predictable for fleet rollouts.
DDR5 Memory Scaling to 8666 MT/s
Four DDR5 slots support dual-channel kits up to 256 GB total capacity with XMP 3.0 and AEMP III profiles. The memory controller validates speeds up to 8666 MT/s when overclocked, giving headroom for memory-intensive AI and content-creation workflows. This ceiling is the key figure for matching the right DRAM kit to the workload.
Highlights
- Supports Intel Core Ultra Series 2 processors via LGA 1851 socket
- DDR5 memory up to 8666 MT/s across four slots with 256 GB capacity
- PCIe 5.0 x16 and M.2 5.0 x4 slots for high-speed expansion
- Intel 1 Gbps LAN plus Realtek 7.1 surround audio for connectivity and sound
- ASUS CSM programme with Control Center Express and TPM for business manageability
Specifications
| Brand | ASUS |
|---|---|
| Model | PRO B860M-CT-CSM |
| Part Number | 90MB1MBM-MVAAYC |
| CPU Socket Type | LGA 1851 |
| CPU Type | Intel Core Ultra Processors (Series 2) |
| Chipset | Intel B860 |
| Number of Memory Slots | 4x288pin (DDR5) |
| Memory Standard | Supports up to 8666+ MT/s(OC) |
| Maximum Memory Supported | 256GB |
| Channel Supported | Dual Channel |
| Memory Performance Profile | Intel XMP 3.0 |
| Memory Feature | Supports up to 8666+ 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 (AEMP III) |
| 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) |
| PCI Express x1 | 1 x PCIe 4.0 x1 slot |
| 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) Intel B860 Chipset M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 modes) |
| SATA RAID | Intel Rapid Storage Technology supports 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 * A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output. |
| Max LAN Speed | 1Gbps |
| Wireless LAN | M.2 slot only 2230 (Key E, CNVi & PCIe)* *Wi-Fi module is sold separately. |
| Back I/O Ports | 1 x USB 10Gbps port (1 x USB Type-C) 1 x USB 10Gbps port (1 x Type-A) 2 x USB 2.0 ports (2 x Type-A ) 2 x DisplayPort 1 x HDMI port 1 x PS/2 keyboard (purple) port 1 x PS/2 mouse (green) port 1 x Intel 1Gb Ethernet 3 x Audio jacks |
| Onboard USB | 1 x USB 10Gbps connector (supports USB Type-C) 1 x USB 5Gbps header supports 2 additional USB 5Gbps ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports |
| Other Connectors | Fan and Cooling Related 1 x 4-pin CPU Fan header 2 x 4-pin Chassis Fan headers Miscellaneous 1 x Clear CMOS header 1 x Chassis Intrude header 2 x COM Port headers 1 x Front Panel Audio header (AAFP) 1 x COM debug header 1 x LPT header 1 x Mono-Out Audio header (with Amp IC) 1 x M.2 slot (Key E) 1 x Speaker header 1 x SMBUS header 1 x 10-1 pin Front Panel System header 1 x SPI header(14-5 pin) |
| BIOS Feature | 256 (128+128) Mb Flash ROM, UEFI AMI BIOS |
| Software | ASUS Exclusive Software ASUS DriverHub UEFI BIOS ASUS EZ DIY - ASUS CrashFree BIOS 3 - ASUS EZ Flash - ASUS MyHotkey |
| Windows 11 | Windows 11 (22H2 & later), Windows 10 64-bit (21H2 & later) |
| Form Factor | Micro ATX |
| Dimensions (W x L) | 9.6" x 9.6" |
| Power Pin | 1 x 24-pin Main Power connector 1 x 8-pin +12V CPU Power connector |
| Features | ASUS Q-Design - Q-LED Core - Q-Slot ASUS Thermal Solution - Aluminum heatsink design ASUS EZ DIY - Box headers - Dual DIMM clips - SafeSlot Bespoke Motherboard Design & Business Focused Features - ASUS Self-Recovering BIOS - ASUS Event Log - ASUS Commercial BIOS Kit* - Anti-moisture coating - BIOS EZ Deploy - 24/7 reliability - Overcurrent protection TXT support TPM IC onboard * Please contact local FAE for Commercial BIOS kit. |
| Package Contents | Cables 2 x SATA 6Gb/s cables Miscellaneous 1 x Screw package for M.2 SSD 1 x I/O Shield 1 x M.2 Key E screw package Documentation 1 x ACC Express Activation Key Card 1 x Quick start guide |
| Shipping weight | 1.13 kg |
| Package size | 279 × 279 × 76 mm |
Questions about this item
How do I install the LGA 1851 CPU and what step is often missed?
Align the processor triangle with the socket marker, lower it gently, and close the retention lever; the step many miss is removing the plastic socket cover before placement.
What maintenance will the M.2_1 slot and its SSD need over time?
The slot itself needs no service; keep the M.2 SSD firmware updated and ensure the motherboard heatsink remains seated for thermal throttling protection.
What limit appears first when the Realtek 7.1 audio runs at 24-Bit/192 kHz continuously?
The 24-Bit/192 kHz DAC ceiling is reached before the Intel 1Gbps LAN or PCIe 5.0 x16 bandwidth under sustained multi-channel playback.
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