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The ASUS PRIME B550M-A WIFI II, model 90MB19X0-M0EAY0, is a micro ATX motherboard built around the AMD B550 chipset and Socket AM4 platform. Part of the ASUS Prime series, it is designed for Ryzen processors and supports Ryzen 3000 Series, 4000 G-Series, 5000 Series and 5000 G-Series CPUs. ASUS has equipped the board with a combination of stable power delivery, extensive cooling provisions and system-tuning controls, giving everyday PC users and DIY system builders access to configurable performance through both software and firmware. The board supports one processor and provides onboard graphics connections for compatible CPUs with graphics capability.
System configuration and tuning are central to the Prime design. The motherboard provides controls for adjusting different aspects of system operation so that performance settings can be configured around the user's workload. Its hardware and software feature set includes ASUS DIGI+ VRM, ASUS TurboV EVO, ASUS EPU Energy Processing Unit, ASUS Fan Xpert 2+, Armoury Crate, ASUS EZ DIY and ASUS Q-Design technologies. ASUS Aura Sync is also supported, providing control for compatible RGB lighting and allowing the appearance of a suitably equipped system to be personalised.
Cooling is addressed through multiple onboard heatsinks and hybrid fan headers intended to help the system maintain stable operation under demanding workloads. The voltage-regulator area uses a VRM heatsink together with an underlying thermal pad. This arrangement assists the transfer of heat away from the MOSFETs and chokes and into the heatsink, supporting more effective cooling of the power-delivery components.
The PRIME B550M-A WIFI II provides four 288-pin DIMM slots and supports up to 128 GB of unbuffered DDR4 memory in a dual-channel architecture. Both ECC and non-ECC memory are supported. Standard memory speeds include 2133 MHz, 2400 MHz, 2666 MHz, 2800 MHz, 2933 MHz, 3000 MHz and 3200 MHz, while overclocked memory frequencies extend through 3333 MHz, 3400 MHz, 3466 MHz, 3600 MHz, 3733 MHz, 3866 MHz, 4000 MHz, 4133 MHz, 4200 MHz, 4266 MHz, 4333 MHz, 4400 MHz, 4466 MHz, 4600 MHz, 4800 MHz and 4866 MHz.
Expansion is provided through one PCIe x16 slot and two PCIe 3.0 x1 slots. The main x16 slot operates in PCIe 4.0 x16 mode when used with Ryzen 5000 Series or Ryzen 3000 Series CPUs, while Ryzen 5000 G-Series and 4000 G-Series processors use PCIe 3.0 x16 mode. This processor-dependent implementation allows the expansion interface to operate according to the PCIe capabilities of the installed compatible Ryzen CPU.
For storage, the motherboard offers four SATA-600 connectors and two M.2 connections. The SATA interfaces support RAID 0, RAID 1 and RAID 10 configurations. One M.2 connection supports SATA-600 and PCIe 4.0, while the second supports SATA-600 and PCIe 3.0. This gives the board both conventional SATA connectivity and M.2 storage support within the same micro ATX platform.
External connectivity includes four USB 3.2 Gen 1 ports and two USB 3.2 Gen 2 ports. Internal headers add connections for a further two USB 3.2 Gen 1 ports and four USB 2.0 ports. The rear connectivity selection also includes Gigabit Ethernet, VGA, DVI-D and HDMI display outputs, a combined PS/2 keyboard and mouse connection, and mini-jack connections for audio line input, audio line output and microphone input. Additional internal connections include an SPDIF output header, an audio header, a serial header and a speaker header.
Network connectivity combines wired Gigabit Ethernet with wireless support for 802.11a/b/g/n/ac/ax standards, including Wi-Fi 6, as well as Bluetooth 5.2. ASUS LANGuard is included among the motherboard's hardware features, while Preboot eXecution Environment support is provided for PXE functionality. Wake on LAN and wake on PME capabilities are also supported.
The integrated audio system provides eight-channel HD Audio compliant with the High Definition Audio standard. ASUS complements the audio implementation with shielding that separates the analogue and digital signal areas to reduce interference between them. The left and right audio paths are placed on separate layers to minimise crosstalk, while premium audio capacitors are used as part of the onboard audio hardware to support high-fidelity sound reproduction. Jack retasking and audio jack detection technology are also included.
System protection and installation-focused features include ASUS 5X Protection III, ASUS Overvoltage Protection, ASUS SafeSlot Core and an ASUS Stainless Steel Back I/O. Q-DIMM and Q-Slot form part of the ASUS Q-Design feature set, while CrashFree BIOS 3 and ASUS EZ Flash 3 provide BIOS-related functionality. The board uses an AMI BIOS with UEFI BIOS support and includes ASUS EZ Flash 3 for firmware updating.
The motherboard receives power through a 24-pin main power connector and an 8-pin ATX12V connector. Its micro ATX board measures 24.4 cm wide by 24.4 cm deep. Supplied accessories consist of an ASUS Wi-Fi moving aerial, one M.2 screw and an I/O back cover, while two Serial ATA cables are also included. The accompanying software package comprises Drivers & Utilities, ASUS AURA Creator, ASUS AI Suite III, ASUS CPU-Z, ASUS AI Charger, DAEMON Tools, WinRAR, a trial version of Norton AntiVirus and ASUS EZ Flash 3. ASUS supplies the PRIME B550M-A WIFI II with a three-year limited warranty.
SureLookIT.com
The ASUS PRIME B550M-A WIFI II, model 90MB19X0-M0EAY0, is a micro ATX motherboard built around the AMD B550 chipset and Socket AM4 platform. Part of the ASUS Prime series, it is designed for Ryzen processors and supports Ryzen 3000 Series, 4000 G-Series, 5000 Series and 5000 G-Series CPUs. ASUS has equipped the board with a combination of stable power delivery, extensive cooling provisions and system-tuning controls, giving everyday PC users and DIY system builders access to configurable performance through both software and firmware. The board supports one processor and provides onboard graphics connections for compatible CPUs with graphics capability.
System configuration and tuning are central to the Prime design. The motherboard provides controls for adjusting different aspects of system operation so that performance settings can be configured around the user's workload. Its hardware and software feature set includes ASUS DIGI+ VRM, ASUS TurboV EVO, ASUS EPU Energy Processing Unit, ASUS Fan Xpert 2+, Armoury Crate, ASUS EZ DIY and ASUS Q-Design technologies. ASUS Aura Sync is also supported, providing control for compatible RGB lighting and allowing the appearance of a suitably equipped system to be personalised.
Cooling is addressed through multiple onboard heatsinks and hybrid fan headers intended to help the system maintain stable operation under demanding workloads. The voltage-regulator area uses a VRM heatsink together with an underlying thermal pad. This arrangement assists the transfer of heat away from the MOSFETs and chokes and into the heatsink, supporting more effective cooling of the power-delivery components.
The PRIME B550M-A WIFI II provides four 288-pin DIMM slots and supports up to 128 GB of unbuffered DDR4 memory in a dual-channel architecture. Both ECC and non-ECC memory are supported. Standard memory speeds include 2133 MHz, 2400 MHz, 2666 MHz, 2800 MHz, 2933 MHz, 3000 MHz and 3200 MHz, while overclocked memory frequencies extend through 3333 MHz, 3400 MHz, 3466 MHz, 3600 MHz, 3733 MHz, 3866 MHz, 4000 MHz, 4133 MHz, 4200 MHz, 4266 MHz, 4333 MHz, 4400 MHz, 4466 MHz, 4600 MHz, 4800 MHz and 4866 MHz.
Expansion is provided through one PCIe x16 slot and two PCIe 3.0 x1 slots. The main x16 slot operates in PCIe 4.0 x16 mode when used with Ryzen 5000 Series or Ryzen 3000 Series CPUs, while Ryzen 5000 G-Series and 4000 G-Series processors use PCIe 3.0 x16 mode. This processor-dependent implementation allows the expansion interface to operate according to the PCIe capabilities of the installed compatible Ryzen CPU.
For storage, the motherboard offers four SATA-600 connectors and two M.2 connections. The SATA interfaces support RAID 0, RAID 1 and RAID 10 configurations. One M.2 connection supports SATA-600 and PCIe 4.0, while the second supports SATA-600 and PCIe 3.0. This gives the board both conventional SATA connectivity and M.2 storage support within the same micro ATX platform.
External connectivity includes four USB 3.2 Gen 1 ports and two USB 3.2 Gen 2 ports. Internal headers add connections for a further two USB 3.2 Gen 1 ports and four USB 2.0 ports. The rear connectivity selection also includes Gigabit Ethernet, VGA, DVI-D and HDMI display outputs, a combined PS/2 keyboard and mouse connection, and mini-jack connections for audio line input, audio line output and microphone input. Additional internal connections include an SPDIF output header, an audio header, a serial header and a speaker header.
Network connectivity combines wired Gigabit Ethernet with wireless support for 802.11a/b/g/n/ac/ax standards, including Wi-Fi 6, as well as Bluetooth 5.2. ASUS LANGuard is included among the motherboard's hardware features, while Preboot eXecution Environment support is provided for PXE functionality. Wake on LAN and wake on PME capabilities are also supported.
The integrated audio system provides eight-channel HD Audio compliant with the High Definition Audio standard. ASUS complements the audio implementation with shielding that separates the analogue and digital signal areas to reduce interference between them. The left and right audio paths are placed on separate layers to minimise crosstalk, while premium audio capacitors are used as part of the onboard audio hardware to support high-fidelity sound reproduction. Jack retasking and audio jack detection technology are also included.
System protection and installation-focused features include ASUS 5X Protection III, ASUS Overvoltage Protection, ASUS SafeSlot Core and an ASUS Stainless Steel Back I/O. Q-DIMM and Q-Slot form part of the ASUS Q-Design feature set, while CrashFree BIOS 3 and ASUS EZ Flash 3 provide BIOS-related functionality. The board uses an AMI BIOS with UEFI BIOS support and includes ASUS EZ Flash 3 for firmware updating.
The motherboard receives power through a 24-pin main power connector and an 8-pin ATX12V connector. Its micro ATX board measures 24.4 cm wide by 24.4 cm deep. Supplied accessories consist of an ASUS Wi-Fi moving aerial, one M.2 screw and an I/O back cover, while two Serial ATA cables are also included. The accompanying software package comprises Drivers & Utilities, ASUS AURA Creator, ASUS AI Suite III, ASUS CPU-Z, ASUS AI Charger, DAEMON Tools, WinRAR, a trial version of Norton AntiVirus and ASUS EZ Flash 3. ASUS supplies the PRIME B550M-A WIFI II with a three-year limited warranty.
SureLookIT.com
Delivery Options:
If the product page shows "3 to 5 Working Days", the following delivery options apply:
SECURISPEED: €6.99 — 3 to 5 working days (Tracked, Insured, Signature Required)
DPD: €6.99 — 3 to 5 working days (Tracked, Insured)
Delivery working days are Monday to Friday (excluding bank/public holidays).
Delivery delays outside our control may occasionally occur.
For full return details see: https://surelookit.com/pages/support
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We are an Irish VAT registered business based in Athlone, Westmeath. Orders are dispatched from our warehouse in Athlone, Westmeath via DPD / AnPost. A tracking number is provided. We deliver throughout Ireland with DPD and AnPost. Tracking and Insured.
to visit our Delivery information page for Next Working Day Delivery and Return Terms. to visit our Delivery information page for 3 to 5 Working Days Delivery and Return Terms.
to visit our Returns and Refund information page.
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Customer Support: [email protected]
Ireland: +353 90 661 7066 (090) 661 7066)
WHB Services (Ireland), Registration Number: 543073 | SureLookIT.com, Registration Number: 710694
VAT Ireland: IE1587719WA
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SureLookIT.com (WHB Services) will take back your WEEE on a one-for-one, like-for-like basis, free of charge at the time of delivery or at any of our store(s) nationwide. Waste batteries are taken back in-store on a one-for-zero basis (i.e. no purchase required) as long as they are of equivalent type to those sold by us. WEEE, waste batteries and light bulbs can also be returned to your local civic amenity site free of charge. The following link will show you how to find the civic amenity site closest to you where you can recycle your WEEE, batteries and light bulbs: https://www.weeeireland.ie/household-recycling/where-can-i-recycle/
. Never put WEEE, batteries or light bulbs in any of your bins.
WEEE Ireland Retailer Registration No: 20068
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