Refurbished
Scan code: LN117870 Manufacturer code: 90-MXBDF0-A0UAYZ

ASRock B550 Extreme4 Open Box ATX Motherboard

Open Box ASRock B550 Extreme4 Motherboard, AMD B550, S AM4, DDR4, SATA3, PCIe 4.0, Dual M.2, CrossFire, 2.5GbE, ATX

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Scan code: LN117870 Manufacturer code: 90-MXBDF0-A0UAYZ
£174.98
Order now and get it tomorrow (upgrade to Sunday delivery at checkout)
From £15.71 / month (APR 14.9%)
Monthly Payment: £15.71
Instalment Rate: 14.9% p.a. (fixed)
Cost of purchase: £174.98
Total inc. interest: £188.50
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Delivery Options
  • By DPD On 27th Sep to your specified address. | £11.50 Receive SMS with one-hour delivery window Weekend, timed and European delivery options are available at checkout

    Have your parcel delivered by DPD to your specified address. Receive SMS with one-hour delivery window

    Weekend, timed and European delivery options are available at checkout
  • Collect instore Collect from our Bolton store, BL6 6PE | Free

    Order online, collect from our Bolton store (25-28 Enterprise Park, Middlebrook, Horwich, Bolton, BL6 6PE)

  • UPS and DPD Pickup Pickup from local convenience store | £4.79

    Collect your parcel from your newsagents, petrol stations and convenience stores

Services
  • SCANPROTECT Protect against installation damage for 28 days. More info

    ScanProtect is an enhanced warranty specifically designed and offered by Scan to reduce the risk of any mishap or damage to components during installation.

    Our aim with ScanProtect is to encourage our customers to upgrade or build their own PC confidently. For a small additional fee our customers are provided with complete peace of mind.

Product Overview

Wake the Performance

Gets the Job Done with EXTREME.


PCIe 4.0 for Everyone

The AMD B550 chipset makes PCIe 4.0 possible for anyone who wants higher performance, bandwidth and speed. Ready for 3rd Gen AMD Ryzen™ processors and beyond.


Unbeatable Heatsink Armor

Forged with aluminium alloy heatsink top cover that effectively improves heat dissipation. Underneath its solid strong cover lie two gaming required M.2 Key M sockets for high speed SSDs.


Dual M.2 Sockets for SSD

Hyper M.2 socket that supports PCIe Gen4 x4 while M.2 socket is capable of running PCIe Gen3 x2 and SATA3 mode.


Nahimic Audio

Whether you are using headphones, a headset, external or internal speakers, via USB, Wi-Fi, analog output or even HDMI, Nahimic Audio offers you the most engaging listening experience, vibrant and rich with details.


Sound Tracker

The Sound Tracker is a visual indicator that points out the directions from which predominant sounds are coming. Each sound is properly positioned in 360° on a radar for a full immersion during the game.


Dr. MOS

Dr.MOS is the integrated power stage solution which is optimized for synchronous buck-set down voltage applications! Compared to traditional discrete MOSFETs, it intelligently delivers higher current for each phase, thus providing improved thermal result and superior performance.


Premium 60A Power Choke

Compared to traditional chokes, ASRock’s premium 60A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.


14 Power Phase Design

Featuring sturdy components and completely smooth power delivery to the CPU. Plus, it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well.


Hi-Density Power Connector

Reduces 23% power loss and decreases the connector’s temperature by 22 degrees Celsius. 8+8 12V Power Connectors and 24-pin ATX Power Connector.


2oz Copper PCB

2 ounce copper inner layers that provide stable signal traces and power shapes! Delivering lower temperature and higher energy efficiency for overclocking, it's able to support the latest DDR4 memory modules with most extreme memory performance!


Rule Your Own Lighting Way - Polychrome RGB

ASRock motherboards deliver stunning performance and superior aesthetics to rule your own colourful lighting way! ASRock offers a very comprehensive control to perform the built-in RGB LEDs or the connected LED strips, CPU fans, coolers, chassis and any RGB devices smoothly. Devices can be synchronized across the Polychrome RGB Sync-certified accessories as well.


Dragon 2.5 Gb/s LAN

The intelligent 2.5Gb/s LAN platform is built for maximum networking performance for the demanding requirements of home networking, content creators, online gamers and high-quality streaming media. Boost networking performance up to 2.5X the bandwidth compared to the standard gigabit Ethernet, you’ll enjoy the faster and uncompromised connectivity experience for gaming, file transfers and backups.


Reinforced Steel Slot [PCIe 4.0 Version]

The reinforced steel slot comes with the next generation PCI Express 4.0 standard. The various benefits include:
• Extra anchor points.
• Stronger latch.
• Ensure signal stability.
• Make sure heavy graphics cards to be well-installed.


Front USB 3.2 Gen1 Type-C

Front USB 3.2 Gen1 Type-C header delivers up to 5 Gbps data transfer rate and next generation reversible USB design to the front panel of computer case.


Dual USB 3.2 Gen2 (Type-A + Type-C)

This motherboard has a pair of onboard Type-A and Type-C USB 3.2 Gen2 ports built on the rear i/o for supporting next generation USB 3.2 Gen2 devices and to deliver up to 10 Gbps data transfer rates.


M.2 (Key E) for WiFi

Besides the onboard LAN port, users may also choose 802.11ac wireless connections by M.2 (Key E) slot.


Flexible Integrated I/O Shield

Unlike most so called pre-mounted I/O shield that is only decorated with fancy colour schemes. We reserve more tolerance space and allow IO shield is adjustable when installing, thus fitting chassis perfectly without any mechanical issue.


XXL Aluminium Alloy Heatsink

Extra large aluminium alloy heat sinks that effectively take away heat from the MOSFET and chipset so that your whole system may perform more stable


Premium 60A Power Choke

Compared to traditional chokes, ASRock’s premium 60A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.


Dr.MOS

Dr.MOS is the integrated power stage solution which is optimised for synchronous buck-set down voltage applications! Intelligently delivering higher current and driving up to 50A continuous current for each phase, thus providing improved thermal result and superior performance.


Premium Memory Alloy Choke

Specifically designed for memory power delivery, these new alloy chokes feature a highly magnetic and heat resistant design, thus delivering more stable and reliable power to the motherboard and memory modules.


Nichicon 12K Black Caps

Supreme 12K black capacitors with lifespans of at least 12,000 hours. Compared to other counterparts on high-end motherboards that merely have lifespans of around 10,000 hours, ASRock applied Nichicon 12K Black Caps that offer 20% longer lifespans and provide more stability and reliability.


I/O Armor

A new designed protective cover for all of the crucial parts near the motherboard's rear I/O, so that they won't easily be damaged by static electricity.


Matte Black PCB

A new mysterious matte black and copper colour scheme to match the prestigious components on ASRock's high-end motherboards.


High Density Glass Fabric PCB

High Density Glass Fabric PCB design that reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity.


2oz Copper PCB

Using only carefully selected copper materials for PCB layers, 2oz Copper PCB delivers lower temperature and higher energy efficiency for overclocking.


Gold Audio Jacks

Everything will wear off in time, but gold looks better! Gold audio jack provides stable sound transmission!


Full Spike Protection

Some sensitive digital components on the motherboard are vulnerable to power surges, the excessive current may cause your system to malfunction immediately. ASRock Full Spike Protection includes various technologies to prevent your motherboard’s components from being damaged by these unexpected voltage spikes.


Live Update & APP Shop

ASRock Live Update & APP Shop is designed for your convenience. We provide various apps and support software for users to download. You can also easily optimize your system and keep your motherboard up to date with ASRock Live Update & APP Shop.

Features

• Supports 3rd Gen AMD AM4 Ryzen™ / Future AMD Ryzen™ Processors.
• 14 Power Phase Design, Digi Power, Dr. MOS.
• Supports DDR4 4733+ (OC).
• 1 PCIe 4.0 x16, 1 PCIe 3.0 x16, 2 PCIe 3.0 x1, 1 M.2 Key E for WiFi.
• Graphics Output Options: HDMI.
• AMD CrossFireX™.
• 7.1 CH HD Audio (Realtek ALC1220 Audio Codec), Nahimic Audio.
• 6 SATA3, 1 Hyper M.2 (PCIe Gen4 x4), 1 M.2 (PCIe Gen3 x2 & SATA3).
• 2 USB 3.2 Gen2 (Rear Type A+C), 5 USB 3.2 Gen1 (2 Rear, 2 Front, 1 Front Type-C).
• Dragon 2.5G LAN.

Specifications
Core Specifications
Edition B550 Extreme 4
Form Factor ATX
CPU Socket AM4
Chipset AMD B550
RAM Memory Support
Memory Type DDR4
Memory Channel Dual (2)
Memory Type (ECC) ECC/Non-ECC
Memory Type (R/U) UDIMM (Unbuffered)
Memory Speed (Mhz)
  • DDR4 - 2133
  • DDR4 - 2400
  • DDR4 - 2667
  • DDR4 - 2933
  • DDR4 - 3200
  • DDR4 - 3466(OC)
  • DDR4 - 3600(OC)
  • DDR4 - 3733(OC)
  • DDR4 - 3800(OC)
  • DDR4 - 3866(OC)
  • DDR4 - 4000(OC)
  • DDR4 - 4133(OC)
  • DDR4 - 4200(OC)
  • DDR4 - 4266(OC)
  • DDR4 - 4333(OC)
  • DDR4 - 4400(OC)
  • DDR4 - 4466(OC)
  • DDR4 - 4533(OC)
  • DDR4 - 4600(OC)
  • DDR4 - 4666(OC)
  • DDR4 - 4733+(OC)
Max. Memory Capacity 128GB
Audio
Audio Realtek ALC1220 7.1 HD Audio
Graphics Support
Primary GPU Interface PCIe 4.0 (x16)
NVIDIA SLI Support Not Supported
AMD CrossFire Support 2-Way CrossFire
Integrated Graphics Requires Processor Graphics or Discrete GPU
On-Board Graphics Connectors HDMI 2.1
Internal Connectivity
Expansion Slots
  • 1 x M.2 Key E (Supports Wi-Fi modules)
  • 1 x M.2, 22-30/42/60/80, PCIe Gen4x4
  • 1 x M.2, 22-30/42/60/80/110, PCIe Gen3/SATA
  • 2 x PCIe 3.0 x1
  • 2 x PCIe 4.0 x16
SATA Support SATA3
RAID Support via SATA
Storage Mode Support
  • RAID 0
  • RAID 1
  • RAID 10
Internal I/O
  • 1 x 24-pin (Power)
  • 1 x 4-pin (Power)
  • 5 x 4-pin CHA_FAN connector
  • 1 x 4-pin CPU Fan Connector
  • 1 x 4-pin CPU OPT Fan Connector
  • 1 x 8-pin (Power)
  • 2 x Addressable Digital RGB Header
  • 1 x Dr. Debug with LED
  • 1 x Front Panel Audio Header
  • 1 x Power Button with LED
  • 1 x Power LED / Speaker Header
  • 1 x Reset Button with LED
  • 2 x RGB Header
  • 1 x TPM (SPI_TPM) header
  • 2 x USB 2.0 Header
  • 1 x USB 3.2 Gen1 Header
External Connectivity
Network Interface Type Wired 2.5 Gigabit LAN (10/100/1000/2500)
Network Chip/Modules 1 x Realtek RTL8125BG
Rear I/O Connectors
  • 1 x Bass Speaker Out
  • 1 x Central Speaker Out
  • 1 x Front Speaker Out
  • 1 x HDMI
  • 1 x Line In
  • 1 x Mic-In
  • 1 x PS/2 Keyboard/Mouse Combo
  • 1 x Rear Speaker Out
  • 1 x RJ-45 with LED
  • 1 x S/PDIF-Out (Optical)
  • 4 x USB 2.0
  • 2 x USB 3.2 Gen1 Type-A
  • 1 x USB 3.2 Gen2 Type-A
  • 1 x USB 3.2 Gen2 Type-C
  • 2 x Wi-Fi antenna connector holes
Additional Specifications
Water Cooled No
Cooling Passive Heatsinks
QPI Speed N/A
Board Dimensions 305 x 244 mm
Note  
Additional Information
Scan Code LN117870
Model Number 90-MXBDF0-A0UAYZ
GTIN 4710483931567
Warranty

Please note your statutory rights are not affected.

For further information regarding Scan's warranty procedure please see our terms and conditions

Details
Duration:
36 months
Type:
Return to base
DOA Period:
28 days
RTB Period:
36 months
Manufacturer Contact Details
Manufacturer:
Scan
Telephone:
0871 472 4747
ASRock B550 Extreme4 Open Box ATX Motherboard
ASRock B550 Extreme4 Open Box ATX Motherboard