Micron Technology, Inc.
Micron Technology, Inc. MT4JTF12864AZ-1G4D1 1GB DDR3 1333 Desktop RAM
- 1GB
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ASUS
ASUS TUF GAMING B550M-PLU AMD motherboard
Micro-ATX AM4 board with B550 chipset, dual M.2 slots, 2.5 Gb LAN and 7.1 audio for Ryzen 5000 builds
- CPU Socket TypeAM4
- CPU TypeBIOS update might require for AMD Zen 3 Ryzen 5000 series CP
- ChipsetAMD B550
- Number of Memory Slots4x288pin (DDR4)
- Memory Standard3rd Gen AMD Ryzen Processors DDR4 4600(O.C)/ 4400(O.C)/ 4266
- Maximum Memory Supported128GB
- Supports up to 128GB DDR4 memory via four 288-pin slots
- PCIe 4.0 x16 slot for high-bandwidth graphics with 3rd Gen Ryzen CPUs
- Dual M.2 slots including one PCIe 4.0 x4 and one PCIe 3.0 x4 for fast storage
- 5Gbps LAN with Realtek RTL8125B controller for low-latency networking
- 1-channel audio with Realtek ALC S1200A codec and AI noise-cancelling microphone support
AM4 Socket Board for Ryzen Builders
This Micro ATX motherboard uses the AMD B550 chipset and AM4 socket to support 3rd Gen Ryzen processors. A BIOS update may be required before installing a Ryzen 5000 series CPU. Four DDR4 slots accept up to 128 GB of memory in dual-channel mode. It suits compact gaming or workstation builds.
PCIe 4.0 and 3.0 Limits on One Board
The primary x16 slot runs at PCIe 4.0 x16 when a 3rd Gen Ryzen CPU is installed. A second x16 slot operates at PCIe 3.0 x4 from the chipset. One PCIe 3.0 x1 slot is also available. Two M.2 slots provide storage expansion; the first supports PCIe 4.0 x4, the second PCIe 3.0 x4. Both also accept SATA M.2 drives.
128 GB DDR4 Maximum Memory Capacity
The board supports 128 GB across four slots with speeds up to 4600 MHz overclocked on 3rd Gen Ryzen and 4800 MHz overclocked on next-gen Ryzen PRO. Native JEDEC speeds reach 3200 MHz. This ceiling determines whether the platform fits high-capacity workloads or heavy multitasking.
Highlights
- Supports up to 128GB DDR4 memory via four 288-pin slots
- PCIe 4.0 x16 slot for high-bandwidth graphics with 3rd Gen Ryzen CPUs
- Dual M.2 slots including one PCIe 4.0 x4 and one PCIe 3.0 x4 for fast storage
- 5Gbps LAN with Realtek RTL8125B controller for low-latency networking
- 1-channel audio with Realtek ALC S1200A codec and AI noise-cancelling microphone support
Specifications
| Brand | ASUS |
|---|---|
| Model | TUF GAMING B550M-PLUS |
| CPU Socket Type | AM4 |
| CPU Type | BIOS update might require for AMD Zen 3 Ryzen 5000 series CPU. Refer to ASUS website for CPU support list. |
| Chipset | AMD B550 |
| Number of Memory Slots | 4x288pin (DDR4) |
| Memory Standard | 3rd Gen AMD Ryzen Processors DDR4 4600(O.C)/ 4400(O.C)/ 4266(O.C.)/ 4133(O.C.)/ 4000(O.C.)/ 3866(O.C.)/ 3733(O.C.)/ 3600(O.C.)/ 3466(O.C.)/ 3333(O.C.)/ 3200/ 3000/ 2800/ 2666/ 2400/ 2133 MHz Un-buffered Memory * Next Generation AMD Ryzen PRO Processors DDR4 4800(O.C.)/ 4600(O.C)/ 4466(O.C.)/ 4400(O.C)/ 4266(O.C.)/ 4133(O.C.)/ 4000(O.C.)/ 3866(O.C.)/ 3733(O.C.)/ 3600(O.C.)/ 3466(O.C.)/ 3333(O.C.)/ 3200/ 3000/ 2800/ 2666/ 2400/ 2133 MHz Un-buffered Memory * * Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists). |
| Maximum Memory Supported | 128GB |
| Channel Supported | Dual Channel |
| PCI Express 4.0 x16 | 3rd Gen AMD Ryzen Processors 1 x PCIe 4.0 x16 slot (supports x16 mode) |
| PCI Express 3.0 x16 | AMD B550 Chipset 1 x PCIe 3.0 x16 slot (supports x4 mode) |
| PCI Express x1 | 1 x PCIe 3.0 x1 slot * Support PCIe bifurcation for RAID on CPU function. |
| Serial ATA (SATA) | 4 x SATA 6Gb/s |
| M.2 | 3rd Gen AMD Ryzen Processors M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 & SATA modes) AMD B550 Chipset M.2_2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 & SATA modes) |
| SATA RAID | 0/1/10 |
| Onboard Video Chipset | Supported only by CPU with integrated graphic: 1 x DisplayPort 1.2 1 x HDMI 2.1 (4K@60HZ) |
| Audio Chipset | Realtek ALC S1200A High Definition Audio CODEC |
| Audio Channels | 7.1 Channels |
| LAN Chipset | Realtek RTL8125B |
| Max LAN Speed | 2.5Gbps |
| Back I/O Ports | 2 x USB 3.2 Gen 2 ports (1 x Type-A + 1 x USB Type-C) 4 x USB 3.2 Gen 1 ports (4 x Type-A) 2 x USB 2.0 ports (2 x Type-A) 1 x DisplayPort 1 x HDMI port 1 x Realtek RTL8125B 2.5Gb Ethernet port 5 x Audio jacks 1 x Optical S/PDIF out port 1 x BIOS FlashBack button 1 x PS/2 Keyboard/Mouse combo port |
| Onboard USB | 1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports 2 x USB 2.0 headers support additional 4 USB 2.0 ports |
| Other Connectors | Fan and cooling related 1 x 4-pin CPU Fan header 1 x 4-pin CPU OPT Fan header 2 x 4-pin Chassis Fan headers Miscellaneous 1 x AURA Addressable Gen 2 header 2 x AURA RGB headers 1 x Clear CMOS header 1 x COM Port header 1 x Front Panel Audio header (AAFP) 1 x Speaker header 1 x SPI TPM header (14-1pin) 1 x 10-1 pin System Panel header |
| Form Factor | Micro ATX |
| LED Lighting | RGB |
| Dimensions (W x L) | 9.6" x 9.6" |
| Power Pin | 1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector |
| Windows 11 | Supported |
| Features | Multi-GPU Support: Supports AMD 2-Way CrossFireX Technology ASUS Exclusive Software: Armoury Crate - Aura Creator - Aura Sync - AI Noise Cancelling Microphone AI Suite 3 - Performance And Power Saving Utility TurboV EVO EPU Digi+ VRM Fan Xpert 2+ - EZ update TUF GAMING CPU-Z AI Charger ASUS Turbo LAN DAEMON Tools DTS Custom for GAMING Headsets Norton Anti-virus software (Free Trial for 60 days) WinRAR UEFI BIOS ASUS EZ DIY - ASUS CrashFree BIOS 3 - ASUS EZ Flash 3 - ASUS UEFI BIOS EZ Mode ASUS Special Features: ASUS TUF PROTECTION - ASUS DIGI+ VRM (Digital power design with Dr. MOS) |
| Package Contents | Accessories: Cables 2 x SATA 6Gb/s cables Miscellaneous 1 x I/O Shield 1 x M.2 Rubber Package 1 x M.2 SSD screw package 1 x TUF Gaming sticker Installation Media 1 x Support DVD Documentation 1 x TUF Certification card 1 x User manual |
| Shipping weight | 1.37 kg |
| Package size | 279 × 267 × 70 mm |
Questions about this item
Should I pick a Ryzen 5000 CPU or a Ryzen 3000 CPU for this board?
The board supports both 3rd Gen and Zen 3 Ryzen 5000 series CPUs, but a BIOS update may be required before a 5000 series processor will post.
What does the 2.5 Gbps LAN figure mean for my actual network speed?
The Realtek RTL8125B controller caps wired throughput at 2.5 Gbps, so transfers over a 2.5 GbE switch or router can reach roughly 300 MB/s in ideal conditions.
Which M.2 slot gives me PCIe 4.0 x4 bandwidth for an NVMe drive?
The M.2_1 slot connected to the CPU provides PCIe 4.0 x4, while the M.2_2 slot from the chipset runs at PCIe 3.0 x4.
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