ASRock Phantom Gaming B860M Lightning WiFi - LGA1851, DDR5
ASRock
ASRock Phantom Gaming B860M Lightning WiFi - LGA1851, DDR5
The ASRock Phantom Gaming B860M Lightning WiFi is a Micro ATX motherboard for builders who want Intel Core Ultra Series 2 support, fast wireless connectivity, and a generous storage expansion layout in a compact form. It solves the problem of finding a smaller-footprint board that still delivers PCIe Gen5 storage, Wi-Fi 6E, Thunderbolt 4, and a robust power delivery system without stepping up to a full-size ATX.
Why this product
PCIe Gen5 M.2 for top-tier SSD speeds
The Blazing M.2 slot runs at PCIe Gen5 x4 (128 Gb/s), giving it the headroom to run the fastest consumer NVMe drives available. Three additional PCIe Gen4 x4 M.2 slots and four SATA3 ports round out the storage options.
Wi-Fi 6E across 2.4, 5 and 6 GHz
The onboard 802.11axe adapter operates on the 6 GHz band in addition to 2.4 and 5 GHz, reducing congestion and enabling lower-latency wireless connections comparable to 5G network service levels.
Thunderbolt 4 / USB4 at 40 Gb/s
A single rear port delivers Thunderbolt 4 and USB4 at up to 40 Gb/s, supporting external monitors, Thunderbolt peripherals, and high-speed storage over one cable.
DDR5 up to 8666+ MHz with XMP 3.0
Four DDR5 DIMM slots support up to 256 GB in dual-channel mode, with Intel XMP 3.0 profiles and a Memory OC Shield for easier overclocking.
Killer 2.5G wired LAN
The Killer E3100G controller provides 2.5 Gigabit wired networking at 10/100/1000/2500 Mb/s, with Killer Control Center software for traffic prioritisation.
BIOS Flashback for no-CPU updates
BIOS Flashback lets you update firmware from a USB drive without a CPU or memory installed, reducing the risk of compatibility problems when pairing new processors with existing hardware.
- SocketLGA1851
- Form FactorMicro ATX
- Memory4× DDR5, up to 256 GB, 8666+ MHz (OC)
- Fastest M.2PCIe Gen5 x4 (128 Gb/s)
- WirelessWi-Fi 6E (2.4/5/6 GHz) + Bluetooth 5.3
- Wired LANKiller E3100G 2.5 Gigabit
- Thunderbolt1× Thunderbolt 4 / USB4 Type-C (40 Gb/s)
- Dimensions244 mm × 244 mm
- SKUASR-3329
- EAN4711581490208
- Fits Intel Core Ultra Processors (Series 2) in the LGA1851 socket.
- Accepts DDR5 non-ECC unbuffered DIMMs, including CUDIMMs, across four slots up to 256 GB total.
- Standard Micro ATX form factor (244 mm × 244 mm) fits any case with mATX or larger support.
- Supports Wi-Fi 6E adapters via the onboard Key-E M.2 slot for Intel CNVio/CNVio2 as an alternative to the included antenna solution.
- RAID 0/1/5/10 is supported for SATA storage devices only; M.2 RAID support is not stated in the product record.
- Does not support DDR4, ECC, or registered/buffered memory — DDR5 only.
Best for
- Compact high-performance builds — Micro ATX size with PCIe Gen5 storage and a 12+1+1+1+1 power phase design makes it suited to space-conscious builds that still demand serious headroom.
- Wireless-first workstations — Wi-Fi 6E on the 6 GHz band plus Bluetooth 5.3 and a 2.5G wired LAN port covers every connectivity scenario without add-in cards.
- Content creators needing fast external I/O — Thunderbolt 4 / USB4 at 40 Gb/s on the rear panel supports high-resolution external monitors and fast external storage simultaneously.
- Builders wanting room to grow storage — One Gen5 and three Gen4 M.2 sockets plus four SATA3 ports provide eight storage attachment points on a single mATX board.
- RGB and fan-control enthusiasts — One RGB header, three addressable LED headers, two CPU fan connectors, four chassis fan connectors, and one AIO pump header give comprehensive control without a hub.
Trade-offs
- Full ATX builds — At 244 mm × 244 mm this is Micro ATX; it will not fill a full-tower ATX tray and offers fewer expansion slots than a full-size board.
- Users who need more than one PCIe x16 slot — Only one PCIe 5.0 x16 slot is provided; multi-GPU or dual-capture-card setups are not supported.
- DDR4 platform upgrades — This board accepts DDR5 only; existing DDR4 memory cannot be reused.
- Builders needing many rear USB-A ports — The rear panel provides two USB 3.2 Gen2 Type-A and four USB 3.2 Gen1 ports; users with large numbers of USB-A peripherals may need a hub.
Supports Intel Core™ Ultra Processors (Series 2) (LGA1851); 12+1+1+1+1 Power Phase, 80A SPS for VCore+GT+SA; 4 x DDR5 DIMMs, Supports Dual Channel, up to 8666+ (OC); 1 PCIe 5.0 x16; Graphics Output Options: 1 HDMI, 1 DisplayPort, 1 Thunderbolt™ 4/USB4 Type-C; Realtek ALC1220 7.1 CH HD Audio Codec, Nahimic Audio; 4 SATA3, 1 Blazing M.2 (PCIe Gen5x4), 3 Hyper M.2 (PCIe Gen4x4); 1 Thunderbolt™ 4/USB4 Type-C (Rear), 3 USB 3.2 Gen2 (2 Rear, 1 Front Type-C), 6 USB 3.2 Gen1 (4 Rear, 2 Front), 6 USB 2.0 (2 Rear, 4 Front); Killer 2.5G LAN; 802.11axe Wi-Fi 6E + Bluetooth; Supports BIOS Flashback, Memory OC Shield
WiFi 6E technology has extended to the whole new 6GHz spectrum band, providing more WiFi capability and giving an even better and faster internet traffic. In addition to deliver higher speeds, the WiFi 6E also enhances the lower latency and supports service levels that are equivalent to 5G networks.
Connect wireless peripherals and accessories with ease. From keyboards and mice to headsets, controllers, speakers, and smartphones, built-in Bluetooth helps reduce cable clutter and makes daily wireless pairing more convenient.
Thunderbolt™ 4/USB4 technology brings speed and versatility to the most advanced USB Type-C, offering a fast and simple level of connection for work or home. It enables lightning-fast data transfer up to 40Gbps and connects external monitors, Thunderbolt™, and USB devices with a single Thunderbolt 4 cable.
This motherboard is built with high quality materials, enthusiasts are able to enjoy the boost of DDR5 memory overclocking performance by enabling the pre-tested profiles.
General
| Brand | ASRock |
|---|---|
| Form Factor | Micro ATX |
| Dimensions | 244 mm × 244 mm |
| CPU Socket | LGA1851 |
| Compatible CPUs | Intel Core Ultra Processors (Series 2) |
| Power Phase | 12+1+1+1+1, 80A SPS for VCore+GT+SA |
Networking
| Standard | 802.11axe Wi-Fi 6E |
|---|---|
| Wireless Bands | 2.4 GHz / 5 GHz / 6 GHz |
| Bluetooth | 5.3 |
| Wired LAN Controller | Killer E3100G |
| Throughput | 10/100/1000/2500 Mb/s |
| Ports | 1× RJ-45 (2.5G), Wi-Fi antenna connectors (2.4/5/6 GHz) |
Performance
| Memory Type | DDR5 non-ECC unbuffered (CUDIMM supported) |
|---|---|
| Memory Slots | 4× DDR5 DIMM, Dual Channel |
| Max Memory | 256 GB |
| Max Memory Speed (OC) | 8666+ MHz |
| Memory Profiles | Intel XMP 3.0 |
| PCIe x16 Slot | 1× PCIe 5.0 x16 |
| M.2 (Gen5) | 1× Blazing M.2 PCIe Gen5 x4 (128 Gb/s), type 2280 |
| M.2 (Gen4) | 3× Hyper M.2 PCIe Gen4 x4 (64 Gb/s), type 2280 |
| SATA3 | 4× SATA3 6.0 Gb/s |
| RAID | RAID 0, 1, 5, 10 (SATA) |
| Audio | Realtek ALC1220, 7.1 CH HD, Nahimic Audio, Optical SPDIF Out |
Ports & Power
| Rear Thunderbolt / USB4 | 1× Thunderbolt 4 / USB4 Type-C (40 Gb/s) |
|---|---|
| Rear USB 3.2 Gen2 | 2× Type-A |
| Rear USB 3.2 Gen1 | 4× Type-A |
| Rear USB 2.0 | 2× |
| Front USB Headers | 1× USB 3.2 Gen2 Type-C, 2× USB 3.2 Gen1, 4× USB 2.0 |
| Video Output | 1× HDMI, 1× DisplayPort 1.4, 1× Thunderbolt 4 Type-C |
| ATX Power | 1× 24-pin ATX, 2× 8-pin 12V (Hi-Density) |
| Fan Headers | 2× CPU, 4× Chassis, 1× AIO Pump (all 4-pin Smart Fan) |
| RGB Headers | 1× RGB, 3× Addressable LED |
| Features | BIOS Flashback, Memory OC Shield |
| Included Accessories | 2× SATA cables, 2× Wi-Fi antennas, 1× thermistor cable, 1× M.2 screw |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.