ASRock B850I Lightning WiFi – Mini-ITX AM5 Motherboard

About the ASRock B850I Lightning WiFi Motherboard

The ASRock B850I Lightning WiFi motherboard brings the latest B850 chipset to compact Mini-ITX builds without compromising on features. This board supports AMD Ryzen 9000, 8000, and 7000 series processors on the AM5 platform. It's built for enthusiasts who want maximum performance in small form factor cases. The 17cm × 17cm footprint fits tight spaces while delivering connectivity and power delivery that rivals larger boards.

What This Mini-ITX AM5 Motherboard Does for You

Small doesn't mean limited with this motherboard with USB Type-C and comprehensive connectivity options. The PCIe 5.0 x16 slot handles current RTX 50 series GPUs at full bandwidth for your gaming PC. Two M.2 slots include a Blazing Gen5x4 slot for the fastest NVMe SSDs available today. WiFi 6E extends wireless coverage into the 6GHz band for cleaner signals in crowded environments. Killer E3100G 2.5GbE LAN prioritizes gaming traffic while you're streaming or downloading. Bluetooth 5.2 connects your wireless peripherals without interference. USB 3.2 Gen2 Type-C on the rear panel supports DisplayPort Alt Mode for flexible display configurations.

Power Delivery Built for Compact Performance

The 10+1+1 phase power design with 110A SPS components handles Ryzen 9 9950X and 9900X processors without thermal issues. Most Mini-ITX boards compromise on VRM quality to save space. ASRock added enlarged heatsink armor across the power delivery components. This matters in small cases where airflow is restricted. Your CPU gets stable voltage even during sustained workloads. The flexible integrated I/O shield simplifies installation while protecting rear connectors.

Perfect For

• Compact gaming builds using Mini-ITX cases under 20 liters without sacrificing RTX 50 series GPU compatibility or PCIe 5.0 storage speeds
• Small form factor workstations running content creation software that benefits from Ryzen 9 9950X multi-core performance in portable setups
• LAN party rigs that need easy transport while maintaining full desktop performance with proper cooling and connectivity
• Home theater PCs combining 4K@120Hz HDMI 2.1 output with quiet operation and wireless connectivity for living room installations

Why Buy from Mansa Computers

• 3-year Singapore warranty with Tech Dynamic service support
• Fast WhatsApp inquiry response for compatibility questions
• Open 7 days a week for technical support and RMA assistance
• Home delivery available across Singapore

Technical Specifications Summary

Chipset
AMD B850

CPU Support
AMD Ryzen 9000 / 8000 / 7000 Series (AM5)

Memory
2 × DDR5 DIMM, up to 8200+ MHz (OC), 128GB max

Graphics Slot
1 × PCIe 5.0 x16

Storage
1 × M.2 Gen5x4, 1 × M.2 Gen4x4, 2 × SATA3

Networking
Killer 2.5GbE LAN, WiFi 6E, Bluetooth 5.2

Audio
Realtek ALC1220 7.1CH HD Audio

Form Factor
Mini-ITX (17.0 × 17.0 cm)

The ASRock B850I Lightning WiFi motherboard gives you the latest AMD platform in a compact package. Whether you're building a portable gaming rig or a space-efficient workstation, this Mini-ITX AM5 motherboard delivers the connectivity and performance you need. Shop now at Mansa Computers with 3-year warranty coverage.

Model Name
B850I

Brand
ASRock

CPU
AMD Socket AM5, supports Ryzen™ 9000 / 8000 / 7000 Series
Expansion slot availability varies by CPU (see PCIe/M.2 bandwidth table)

Chipset
AMD B850

Memory
2 × DDR5 DIMM, dual channel
Supports DDR5 ECC / non-ECC, un-buffered memory up to 8200+ MHz (OC)
Max. capacity: 128 GB
Supports XMP and EXPO memory modules
OS note: Windows 32-bit reserves <4GB; no limitation under 64-bit OS

Graphics (Integrated AMD RDNA™, CPU dependent)
HDMI 2.1 (TMDS/FRL 8G): HDR, HDCP 2.3, up to 4K@120Hz
USB 3.2 Gen2 Type-C (DP 1.4 HBR3 Alt Mode): up to 4K@60Hz
Support varies by CPU

Audio
Realtek® ALC1220 HD Audio Codec, 7.1 CH with Content Protection
Impedance sensing on rear out port
Individual PCB layers for R/L audio channel
Nahimic Audio
Optical SPDIF Out

Networking
Killer E3100G 2.5GbE LAN (10/100/1000/2500 Mbps)
Killer LAN Software with presets (gaming, browser, streaming)
802.11axe Wi-Fi 6E, Dual-Band 2×2, extended 6GHz band (Windows 11 required)
Bluetooth® 5.2, MU-MIMO support

Expansion Slots
CPU: 1 × PCIe 5.0 x16 (x16 / x8 / x4 depending on CPU)
Chipset: 1 × Vertical M.2 (Key E) for Wi-Fi/BT module
Supports NVMe SSD boot disks

Storage
CPU:
1 × Blazing M.2 (Gen5x4, 2280)
Chipset:
1 × Hyper M.2 (Gen4x4, 2280)
2 × SATA3 6Gb/s
RAID:
NVMe: RAID 0/1/10 (RAID 10 requires additional M.2 NVMe cards)
SATA: RAID 0/1

USB
Rear I/O
1 × USB 3.2 Gen2 Type-C (10Gbps, DP Alt Mode supports DP 1.4a; up to 40Gbps with select CPUs)
2 × USB 3.2 Gen2 Type-A (10Gbps, Lightning Gaming Ports)
1 × USB 3.2 Gen1
4 × USB 2.0
Front I/O (via headers)
1 × USB 3.2 Gen1 Type-C
2 × USB 3.2 Gen1 Type-A
1 × USB 2.0 header (2 ports)

Internal Connectors
1 x Thermistor Cable Header
2 x Addressable LED Headers
1 x CPU Fan Connector (4-pin) (Smart Fan Speed Control)
1 x Chassis Fan Connector (4-pin) (Smart Fan Speed Control)
1 x AIO Pump Fan Connector (4-pin) (Smart Fan Speed Control)
1 x 24 pin ATX Power Connector
1 x 8 pin 12V Power Connector (Hi-Density Power Connector)
1 x Front Panel Audio Connector
1 x USB 2.0 Header (Supports 2 USB 2.0 ports)
1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports)
1 x Front Panel Type C USB 3.2 Gen1 Header

Rear I/O
2 × Antenna ports
1 × HDMI 2.1
1 × USB-C (Gen2, DP Alt Mode)
2 × USB 3.2 Gen2 Type-A (red)
1 × USB 3.2 Gen1
4 × USB 2.0
1 × RJ-45 (2.5G LAN)
1 × Optical SPDIF Out
1 × Line Out (gold)
1 × Mic In (gold)
1 × BIOS Flashback Button

BIOS & Software
256Mb AMI UEFI Legal BIOS (GUI, EZ Mode, Instant Flash, Auto Driver Installer)
ASRock Polychrome SYNC, Phantom Gaming Tuning, Killer Control Center

Unique Features
Superb Productivity: PCIe Gen5 (Graphics, M.2), Dual Channel DDR5
Rock-Solid Durability: 10+1+1 Power Phase, 110A SPS for VCore, Enlarged Heatsink Armor, Flexible Integrated I/O Shield
Ultrafast Gaming: Killer 2.5G LAN, 802.11axe Wi-Fi 6E, Lightning Gaming Ports
EZ Update: BIOS Flashback Button, Auto Driver Installer
EZ Troubleshooter: Post Status Checker

Accessories
2 × SATA cables
2 × Wi-Fi 2.4/5/6 GHz antennas
2 × M.2 screws
1 × Thermistor cable

Form Factor
Mini-ITX, 17.0 × 17.0 cm, 8-layer PCB

OS Support
Windows® 10 64-bit / Windows® 11 64-bit

Certifications
FCC, CE
ErP/EuP ready (requires compliant PSU)

3 YEARS WARRANTY 

Tech Dynamic Pte Ltd
514 Chai Chee Ln, #05-09, Singapore 469029
Contact: 6717 3000

Frequently Asked Questions About ASRock B850I Lightning WiFi Motherboard

Does this ASRock B850I Lightning WiFi motherboard support RTX 50 series GPUs?

Yes, the PCIe 5.0 x16 slot fully supports RTX 50 series graphics cards including the RTX 5090, 5080, 5070 Ti, and 5070. The slot provides full bandwidth for these current-generation GPUs. Note that RTX 40 series cards (previous generation) are also compatible but don't require PCIe 5.0.

Can this Mini-ITX motherboard handle a Ryzen 9 9950X processor?

Absolutely. The 10+1+1 phase power delivery with 110A SPS components provides stable voltage for the 16-core Ryzen 9 9950X. The enlarged heatsink armor keeps VRM temperatures under control even in compact cases with restricted airflow.

What's the difference between WiFi 6E and regular WiFi 6?

WiFi 6E adds support for the 6GHz frequency band on top of 2.4GHz and 5GHz. This means cleaner wireless signals with less interference, especially in dense residential areas. Windows 11 is required to access the full 6GHz band capabilities.

What warranty coverage comes with this ASRock motherboard?

You get a 3-year Singapore warranty backed by Tech Dynamic, ASRock's authorized distributor. Mansa Computers provides direct WhatsApp support for technical questions and RMA assistance. We're open 7 days a week to help with any issues.

How does the B850 chipset compare to X870 for Mini-ITX builds?

The B850 chipset offers nearly identical features to X870 at a lower cost. You get PCIe 5.0 support, DDR5 memory, and USB 3.2 Gen2 connectivity. X870 mainly adds more PCIe lanes, which don't matter much on Mini-ITX boards due to space constraints.

How long will it take to receive my purchase?

Standard Shipping - 3 to 5 days
Express Shipping - 1 to 2 days

Can I opt for store pickup?

Yes, we are open daily for collection from 11 AM - 6.30 PM.

Address: 1 Ubi View #01-22, Focus One Building Singapore 408555 (Door located nearest to carpark exit gantry)

We will contact you once your order is ready for collection!