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MSI MAG B850M MORTAR WIFI | AMD B850 | AM5 | DDR5 | Micro-ATX
A compact board for Ryzen builders who want fast storage, quick networking and cool running in a smaller case.
Condition: New
Note: price and availability are subject to change without prior notice
The MSI MAG B850M MORTAR WIFI is available at Mascom International for KSh 50,000, brand new and sealed, built on the AMD B850 chipset for AM5 Ryzen processors. This Micro-ATX motherboard takes Ryzen 7000, 8000 and 9000 Series chips and four DDR5 memory sticks, up to 256GB in total. It carries three M.2 slots, two of them PCIe 5.0, plus a PCIe 5.0 x16 slot for a graphics card. Networking covers 5G LAN, Wi-Fi 7 and Bluetooth 5.4. You can see the MSI MAG B850M MORTAR WIFI at our store in the Old Mutual Building on Kimathi Street, Nairobi CBD.
Built for gamers, video editors, developers and small studios across Kenya, the MSI MAG B850M MORTAR WIFI suits anyone planning a fresh AM5 build in a compact case. Many builders upgrading from an old AM4 system find their next graphics card or SSD soon outgrows the board. This one avoids that problem with PCIe 5.0 for the graphics slot and two SSD slots, so parts you buy in two or three years still run at full speed. Content creators in Westlands and Kilimani get fast scratch drives for 4K footage, while students at JKUAT and Strathmore get room to grow.
Where most Nairobi electronics shops sell motherboards over the counter with no advice, Mascom International checks CPU and memory compatibility with you before you pay. At Mascom International, we're seeing more buyers choose the MSI MAG B850M MORTAR WIFI over full-size ATX boards, because it fits smaller cases without giving up fast storage or Wi-Fi 7. Customers across Nairobi tell us the built-in wireless saves them buying a separate adapter. Visit us to inspect the MSI MAG B850M MORTAR WIFI in person, or order on WhatsApp for pay-on-arrival delivery anywhere in Kenya. We also help you pair it with the right Ryzen chip and DDR5 kit.
Common Questions About the MSI MAG B850M MORTAR WIFI
How much is the MSI MAG B850M MORTAR WIFI in Kenya?
The MSI MAG B850M MORTAR WIFI costs KSh 50,000 brand new at Mascom International in Nairobi CBD. That price includes the 12-month Mascom International warranty and pay-on-arrival delivery to all 47 counties. The price covers the board only; the processor, memory and SSD are bought separately. It sits KSh 5,000 above the MSI Z790 GAMING PLUS WIFI at KSh 45,000 and KSh 21,000 above the MSI B550M PRO-VDH WIFI at KSh 29,000. The MSI PRO B760M-E costs KSh 21,000, which is KSh 29,000 less, but it has no built-in wireless.
Which processors work with the MSI MAG B850M MORTAR WIFI?
The MSI MAG B850M MORTAR WIFI supports AMD Ryzen 7000, 8000 and 9000 Series desktop processors on the AM5 socket. That covers everything from entry Ryzen 5 chips to Ryzen 9 workstation parts. Ryzen 8000 chips carry integrated graphics, so you can run a monitor from the HDMI 2.1 port with no graphics card. On some 8000 Series chips, the main graphics slot runs with fewer lanes. Older AM4 Ryzen chips will not fit; the MSI B550M PRO-VDH WIFI at KSh 29,000 suits those.
Should I buy the MSI MAG B850M MORTAR WIFI or the MSI Z790 GAMING PLUS WIFI?
Buy the MSI MAG B850M MORTAR WIFI for an AMD Ryzen build, and the MSI Z790 GAMING PLUS WIFI at KSh 45,000 for an Intel LGA 1700 processor. The two boards take different chips, so your processor decides first. The AM5 socket has already carried three Ryzen generations, while Intel's newer desktop chips have moved on from LGA 1700. The B850M board also gives you two PCIe 5.0 SSD slots and 5G LAN in a smaller Micro-ATX size. Pick the Z790 board if you already own an Intel chip.
How does the MSI MAG B850M MORTAR WIFI cope with power cuts, heat and dust in Kenya?
Pair the MSI MAG B850M MORTAR WIFI with a UPS, because a KPLC power cut during a BIOS update or file save is the biggest risk to any desktop in Kenya. If settings misbehave after an outage, the rear Clear CMOS button resets the board without opening the case. The Flash BIOS button lets you load fresh firmware from a USB stick. For dust and heat, the extended heatsinks and six fan headers keep air moving across the board. Clean your case filters every month or so.
Can I use my old DDR4 RAM with the MSI MAG B850M MORTAR WIFI?
No, the MSI MAG B850M MORTAR WIFI accepts DDR5 memory only, and DDR4 sticks will not fit its slots. The board has four DDR5 slots holding up to 256GB in dual-channel mode. Standard kits run at 4800 to 5600 MT/s, and overclocked kits reach up to 8200 MT/s through a BIOS profile. Two sticks are the usual starting point, with two more added later. If you want to keep your DDR4 memory, the MSI B550M PRO-VDH WIFI at KSh 29,000 takes it with an AM4 Ryzen chip.
How many SSDs can the MSI MAG B850M MORTAR WIFI hold?
The MSI MAG B850M MORTAR WIFI holds three M.2 NVMe SSDs and four SATA drives, seven drives in total. Two M.2 slots run at PCIe 5.0 x4 straight from the processor, which suits the fastest SSDs on sale. The third M.2 slot runs at PCIe 4.0 x2 from the chipset, which is fine for a game library or backups. A video editor can keep Windows on one fast SSD, active projects on the second, and finished footage on SATA hard drives. RAID setups are supported too.
Is the MSI MAG B850M MORTAR WIFI good for gaming and video editing?
Yes, the MSI MAG B850M MORTAR WIFI handles high-end gaming and 4K editing builds when paired with a capable Ryzen chip and graphics card. Its PCIe 5.0 x16 slot takes any current graphics card at full speed. A 12+2+1 Duet Rail power system and dual 8-pin CPU connectors keep a Ryzen 9 fed during long renders. Online gamers get a wired 5G LAN port, and on Safaricom or Zuku home fibre your package speed, not the board, sets the limit. Editors gain fast PCIe 5.0 scratch drives.
Who should buy the MSI MAG B850M MORTAR WIFI, and who should skip it?
The MSI MAG B850M MORTAR WIFI suits Ryzen builders who want Wi-Fi 7, fast storage and strong power delivery in a compact case. Gamers, editors, developers and small studios get the most from it. Skip it if you are building a basic office PC; the MSI PRO B760M-E at KSh 21,000 does that job for much less. Skip it too if you own AM4 parts, which suit the MSI B550M PRO-VDH WIFI. Anyone needing three or more expansion cards should look at a full-size ATX board.
Technical Specifications
Chipset and CPU Support
- AMD B850 chipset — the AM5 platform that brings PCIe 5.0 graphics and storage to mid-range Ryzen builds.
- AM5 socket — fits AMD Ryzen 7000, 8000 and 9000 Series desktop chips; older AM4 processors do not fit.
- Duet Rail 12+2+1 power system — twelve phases feed the CPU cores for steady power to high-core-count Ryzen 9 chips.
- Dual 8-pin CPU power connectors — carry the current a heavy processor draws during long renders, code builds and gaming.
- Core Boost and Memory Boost layouts — MSI board designs that keep power delivery and memory signals clean for stable running.
Memory
- Four DDR5 UDIMM slots in dual-channel layout — start with two sticks today and add two more later.
- Up to 256GB total memory — room for large video projects, virtual machines and dozens of browser tabs open together.
- Standard speeds of 4800 to 5600 MT/s — regular DDR5 kits run at their rated speed with no manual tuning.
- Overclocked speeds up to 8200 MT/s — faster kits reach higher speeds through a BIOS memory profile.
- EZ Memory Detection LED — lights up when memory has a problem, saving guesswork on first boot.
Storage and Expansion
- Three M.2 slots in total — run Windows, games and work projects on separate NVMe SSDs.
- M.2_1 and M.2_2 at PCIe 5.0 x4 from the CPU — take the fastest NVMe SSDs on sale, in 2280 and 2260 sizes.
- M.2_3 at PCIe 4.0 x2 from the chipset — suits a game library or backup SSD in the 2280 size.
- Four SATA 6Gb/s ports — connect hard drives or 2.5-inch SSDs for bulk storage of photos and footage.
- SATA and NVMe RAID support — mirror two drives for safety, or join them for speed.
- PCIe 5.0 x16 graphics slot plus a PCIe 4.0 x4 slot — full-speed graphics, with room for a capture card.
Networking and Rear I/O
- Realtek RTL8126-VB 5G LAN — wired networking at 5 gigabits per second, five times standard gigabit Ethernet, for fast office transfers.
- Wi-Fi 7 on 2.4, 5 and 6 GHz plus Bluetooth 5.4 — up to 5.8 Gbps wireless, and pairing with no dongle.
- One USB 20Gbps Type-C and one USB 10Gbps Type-C on the rear — fast copying from external SSDs and camera drives.
- Three USB 10Gbps and four USB 5Gbps Type-A ports — enough sockets for a keyboard, mouse, webcam, printer and flash drives together.
- HDMI 2.1 FRL output up to 8K60 — drives a monitor or TV straight from a Ryzen chip with integrated graphics.
Cooling and Audio
- Frozr Guard extended heatsinks with 7W/mK MOSFET thermal pads — pull heat away from the power stage during long, heavy loads.
- Extra choke thermal pads — cool the power coils too, helping the board stay stable in a warm room.
- EZ M.2 Shield Frozr II — a metal heatsink over the M.2 area that stops fast SSDs slowing down when hot.
- Six PWM fan headers: one CPU, one pump or system, and four system — enough for a liquid cooler plus a full set of case fans.
- Realtek ALC4080 7.1-channel audio — up to 32-bit/384kHz on the front panel jack for clear headphone sound.
Build and Form Factor
- Micro-ATX format at 243.84 by 243.84 mm — fits Micro-ATX cases and larger ATX towers.
- 8-layer PCB with 2oz thick copper — extra copper layers carry power and signals cleanly and spread heat.
- EZ M.2 Clip II — tool-free SSD fitting, so there are no tiny screws to lose during a build.
- Four EZ Debug LEDs — show whether the CPU, memory, graphics or boot drive is stopping the PC from starting.
- Three ARGB V2 headers, one RGB header and a front USB 10Gbps Type-C header — case lighting and front ports all connect.
Package Contents
The MSI MAG B850M MORTAR WIFI arrives brand new in its sealed MSI retail box. MSI does not list the box contents in text on its product page, showing the accessory set only in a photo, so we open the box with you at the counter to confirm each item before you pay. A processor, memory, SSD, CPU cooler and graphics card are not part of the box. Mascom International can quote these parts separately, so your whole build arrives ready to assemble.
Warranty
The MSI MAG B850M MORTAR WIFI ships with a 12-month warranty through Mascom International, covering manufacturing defects under normal use. The cover applies to faults in the board itself. Claims are handled at our Nairobi CBD service desk in the Old Mutual Building on Kimathi Street, where our team checks the board and guides you through the process.
Where to Buy the MSI MAG B850M MORTAR WIFI in Kenya
The MSI MAG B850M MORTAR WIFI is in stock at Mascom International, Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD. We open Monday through Saturday, 9:00 AM to 7:00 PM. Come in to handle the board, check the rear ports against your case, and talk through the Ryzen chip and memory that fit your budget. It comes in MSI's single MAG colour scheme; ask on WhatsApp for photos of the unit in stock.
Reach our team through any of these channels:
- Phone/WhatsApp: +254 708 852 521
- Email: info@mascomintl.com
- Website: www.mascomintl.com
We deliver pay-on-arrival to all 47 counties. Orders within Nairobi and its environs arrive the same day, and builders in Mombasa, Kisumu, Nakuru, Eldoret and other major towns receive theirs the next business day. Mandera, Wajir, Marsabit, Lamu, Tana River, and Turkana receive delivery within 2-3 business days. Your board is backed by the 12-month warranty above. We give honest specifications, accurate pricing and real after-sales support, so you can plan your next PC build with confidence.
Disclaimer: We can not guarantee that the information on this product is 100% correct
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