Asus PRIME B450M-K II (90MB1600-M0EAY0)
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An affordable microATX motherboard from 2021 featuring the AMD AM4 processor socket and the AMD B450 chipset. This is the second (enhanced) version of the popular Asus PRIME B450M-K board, distinguished by an increased maximum memory capacity up to 64GB of high-frequency DDR4, up to 4400 MHz, with support for A-XMP, and the inclusion of a popular digital HDMI 2.0b output interface.
It features modest dimensions and a convenient layout, making it easy to install in compact microATX Minitower cases. The motherboard supports a wide range of AMD Ryzen processors 1000/2000/3000/5000 (Summit Ridge, Pinnacle Ridge, Matisse, Vermeer), APU Ryzen 2000G/3000G/4000G/5000G (Raven Ridge, Picasso, Renoir, or Cezanne with integrated Vega graphics unit), and CPU Athlon (Raven Ridge).
Positioned as a basic price category product for 2021, it's aimed at entry-level or mid-range home and office configurations. The Asus PRIME B450M-K II motherboard is equipped with a six-phase processor power subsystem built on high-quality component base. For creating a high-performance data storage subsystem, it includes an M.2 port (PCIe Gen3 x4) and six standard SATA3 connectors. The GbE LAN-controller Realtek RTL8111H handles intensive network traffic processing with low latencies.
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Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Asus 2026 - new arrivals, bestsellers, and the most relevant models Asus.
Bought as a replacement for an old platform on LGA1155. It works with an R5 3600 and 2x8GB 3200MHz. I chose between this and the TUF Gaming on A520, and opted for the Prime, as the additional 2 power phases and lighting were unnecessary for me, and I have no plans for exceeding 64GB of RAM. It's more than enough for both work and gaming without any experiments with overclocking. Previously, my motherboards were exclusively Gigabyte, but this one matches it in terms of PCB thickness and contacts. All the necessary connectors are there, intuitive for beginners and advanced BIOS users, price for the current B450 with overclocking support, M.2 PCIE 4x I would like built-in Wi-Fi, but this is already nit-picking for such a price  Sergey Sh: use Asus PRIME B450M-K II few months |
Took in February 2021 about 1800 UAH. During the use of any problems or complaints arose. Everything is stable, the BIOS is understandable (Russified), there are a lot of settings (although I don’t use them). I took it because Asus is a reliable company - set it and forgot it. (AMD 3350 g, 16 GB of RAM, hdd Toshiba 1TB + (m2) ssd adata xpg s5 256GB, PSU Chiftek tps 500W). Just what you need for home or office. I did not indulge in overclocking, I do not see the point. Stability Many settings Not found use Asus PRIME B450M-K II more than year |
Between generations
ASUS Prime B450M-K II is an updated version of one of the most affordable motherboards with the AM4 socket. There are practically no changes in the design, but the volume of the BIOS chip has been increased to ensure compatibility with all Ryzen processors, from the 1000th to the 5000th series, without the need for a firmware update. The power supply system is designed according to the 4 + 2 phase scheme: four are responsible for the processor cores, and two are for the integrated graphics. There are no radiators on the VRM.
Overcompensation
The board has only two RAM slots, but supports frequencies over 4000 MHz and a total capacity of up to 64 GB. The M.2 NVMe SSD and x16 video card slots operate on the third generation of PCI-Express, due to the B450 chipset. However, support for new PCIe 4.0 video cards is partially compensated by Resizable BAR technology, which helps use video memory more efficiently.
Digital or analog
There are three video outputs for connecting monitors: digital HDMI and DVI, as well as analog VGA. The only thing missing for complete versatility is DisplayPort. If necessary, the integrated video core can be overclocked by several hundred megahertz via the Precision Boost Overdrive menu. But what can really be considered a drawback of the Prime B450M-K II is only one connector for a case fan.
