Listing Update...This is not so much an update as it is a brief comment about the computers and related parts I have available for sale. Personal computers (and in particular desktop computers) have always been a hobby of mine. I've enjoyed tinkering with this stuff over the years and have accumulated a number of items during this time...some new and some used. I am not an expert on the subject...more of an enthusiast...but I will still do my best to answer any questions as it relates to my computer related listings. Thank you.

Original Listing...
This offering is for a new ASRock B450M Pro4 motherboard with an AMD AM4 socket and the B450 chipset. It's a micro ATX (form factor) and includes a respectable feature set. My research indicates this motherboard has a large 3 (Vcore) + 3 (Vsoc) phase VRM (Voltage Regulator Module) with decent/functional heatsinks to further aid in cooling. When I say this is a large 3 + 3 phase VRM, I mean that ASRock built this VRM (especially the Vcore part) with additional mosfets and chokes (or inductors) that allow for better (and cooler) power delivery to the processor. Unfortunately, ASRock advertises this motherboard (and similar models like it) as a 6 + 3 phase VRM, but this is really disingenuous on their part, as there are no "doublers" used to increase the Vcore VRM phase count from 3 to 6. Still, the added mosfets and chokes do help with power delivery capacity to the processor and make for a solid Vcore VRM at this price point. It's just not quite as good as ASRock marketing people would lead you to believe. After having said all of this (and probably coming as no surprise), there are certainly better B450 motherboards in terms of power delivery (but again...probably not at this price point). So if you want a top-end motherboard that is capable of running and overclocking Ryzen 7 or 9 processors, then I would spend more money and get a motherboard with superior power delivery. Although, if you are more interested in running a Ryzen 3 or 5 processor and prefer more of a value-priced motherboard with a respectable set of features, then this offering may be worthy of your consideration. Finally, if you really want to maximize the value of this motherboard and the large 3 + 3 phase VRM, then you could run a Ryzen 7 processor at stock speeds (so no overclocking) and still be okay...provided you have good case airflow and a decent aftermarket cooler seated over the processor.

As for my reason for selling this motherboard, I have a handful of them on the shelf and probably won't use all of them over the near term, especially since the bike business has got me a bit overwhelmed at the moment. I do want to confirm that I have built a number of computers with this motherboard and with respect to the micro ATX form factor and the feature set crammed onto this motherboard...it's tough to beat at this price point. I still like some of the larger (full ATX form factor) MSI B450 motherboards a little better, but when it comes to the micro ATX form factor in a B450 motherboard, this is probably my first choice. I also like (and build with) the Gigabyte B450M DS3H as a micro ATX motherboard, and it can usually be found for a little less money, but I still think this ASRock B450M Pro4 is a better offering (even at a modestly higher price point). Although, either would be a good choice for Ryzen 3 and 5 processors.

Having said the above, I thought it might also be helpful if I shared a specifications sheet of sorts that provides more details....

• Chipset / Socket Type: B450 chipset that supports the AM4 processor socket and best suited for AMD first generation Ryzen 1000 series processors (Zen micro-architecture), second generation Ryzen 2000 series processors (Zen+ micro-architecture) or third generation Ryzen 3000 series processors (Zen 2 micro-architecture). Regarding the latter, the retail box for this motherboard states it is compatible with the Ryzen third generation processors, so it's likely already had a factory BIOS update to achieve this level of compatibility. You may also be able to run newer fourth generation Ryzen 5000 series processors (Zen 3 micro-architecture) on this motherboard, with a BIOS update, but I like the newer model (B550 or X570) motherboards with fourth generation processors. I just think the newer chipsets on the B550 and X570 motherboards are a better match for the Ryzen 5000 series processors.

• Size: Micro ATX form factor that measures 9.6" x 9.6"

• Memory: 64 GB (max) of DDR4 memory (4 x 288 pin slots)...dual channel supported and max clock speed of 3200 MHz.

• Audio: Integrated Realtek ALC892 audio that supports up to 7.1 (8 channel) surround sound w/8 speakers (integrated means the sound card is built onto the motherboard)

• LAN: Integrated Realtek RTL8111H LAN chipset w/transfer rate up to 1000 Mbps or 1 Gbps

• Wireless LAN (aka WiFi) and Bluetooth: Not applicable on this motherboard. So if desired, will need to be added via a PCIe expansion card (recommended) or a USB adapter.

• Input/Output ports (rear shield): one PS/2 (mouse or keyboard), two black USB Type-A (2.0 running at 480 Mb/s), three video (HDMI, DVI-D and VGA), four blue USB Type-A (3.2 Gen 1 running at 5 Gb/s), one blue USB Type-A (3.2 Gen 2 running at 10 Gb/s), one USB Type-C (3.2 Gen 2 running at 10 Gb/s), a RJ-45 Network (LAN) with LED indicator, blue audio input (various devices), green audio output (headphone, two-channel speakers or front speakers), pink audio input (microphone)

• Storage ports/sockets: four SATA 3.0 ports, one M.2 Socket 3 with Type M key that will accommodate sizes 2242/2260/2280 (PCIe 3.0 support up to x4 lanes for SSD) and one M.2 Socket 3 with Type M key that will accommodate sizes 2230/2242/2260/2280 (SATA 3.0). Note1: performance assumes a Ryzen CPU or APU is installed on this motherboard. If an Athlon processor is installed, the performance may be less. Note2: data transfer rates are as follows...SATA 3.0 is stated at 6 Gb/s (750 MB/s, but it's actually less due to the overhead caused by the 8b/10b SATA encoding scheme. This lowers the actual transfer rate to about 80%, or 4.8 Gb/s, which when divided by 8 bits gives us 600 MB/s.), PCIe 2.0 is 4 Gb/s (500 MB/s) per lane and PCIe 3.0 is 8 Gb/s (1 GB/s) per lane. So as it relates to PCIe supported sockets, just multiply the number of lanes available by the applicable PCIe transfer rate and this will give you the theoretical maximum bandwidth for that socket (FYI: PCIe overhead is about 3%, due to a more efficient encoding scheme. So PCIe transfer rates are closer to their theoretical maximums relative to SATA transfer rates.). Note3: SATA SSDs are usually B+M keyed and this hybrid key design will fit in either a B or M keyed socket. Note4: We generally use bits-per-second to measure transfer speeds, but bytes-per-second to measure data, because it takes 8 bits (or 1 byte) to encode a single character of text.

• Expansion slots: one PCIe 3.0 x16 slot running at x16 lanes, one PCIe 2.0 x16 slot running at x4 lanes and one PCIe 2.0 x1 slot running at x1 lane. Note1: performance assumes a Ryzen CPU is installed on this motherboard. If a Ryzen APU or Athlon processor is installed, the performance may be less (with fewer lanes dedicated in some cases). Note2: data transfer rates are as follows...PCIe 2.0 is 4 Gb/s (500 MB/s) per lane and PCIe 3.0 is 8 Gb/s (1 GB/s) per lane. So just multiply the number of lanes available in a particular slot by the applicable PCIe transfer rate and this will give you the theoretical maximum bandwidth for that slot.

• Other: There are other available headers/connectors on the motherboard and I can try to answer related questions or refer you to the manufacturer's website for a full motherboard description.

As I mentioned above, this is a new motherboard and it will come to you in it's original retail box/packaging. I can also confirm the pictures reflect the next (actual) motherboard to be sold and this includes a close-up image of the processor UPC code / serial number. I also opened the box to confirm all the accessories and literature/manuals were present (and they are) and to inspect the motherboard through the anti-static packaging (and everything looks good). So this is truly a factory new motherboard that has yet to be removed from it's anti-static packaging.

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Note to international customers regarding shipping...
We apologize to those that feel some of our international shipping charges are too high. We only charge actual shipping rates, but once an order exceeds a certain amount, we hesitate to use the least expensive US Postal Services First Class International service. We feel this way, because this service is not trackable or insurable...so more risk of loss. We prefer the US Postal Services Priority Mail International service for more expensive orders, because this service is trackable at USPS.com and insurable...so less risk of loss. Unfortunately, this service is more expensive, especially for smaller/lighter packages, relative to the First Class International service. We are sorry about these higher shipping costs, but hopefully our notes help to explain why this is the case.

Note to international customers regarding customs...
We also apologize to those that feel their country import taxes, duties and brokerage fees are excessive. As a small US business, we are required by customs' laws to declare each order as a retail sale. Additionally, the declared order value must be equal to total store purchases and/or winning auction bids (less any shipping costs, as these are not considered in the declared value). As a result, each customer will be responsible for paying his/her own country taxes, duties and brokerage fees, which will be collected upon delivery. Again, we apologize for these additional costs, but we cannot afford the penalties and fines that come with breaking customs' laws...so we have to strictly abide by them.