ASRock's first of its kind is the H510 mainboard H510 Pro BTC +, a special solution with unusual dimensions and six triple-slot graphics cards. Intel CPUs of the series Comet Lake (10th Gen) and the new Rocket Lake (11th Gen) can take place in the current Intel socket LGA 1200.
Long, narrow and far removed from common standards
While a conventional ATX mainboard measures 305 × 244 mm (L × W) in length and width, the dimensions of the ASRock H510 Pro BTC + are an extraordinary 501 × 224 mm (L × W). The particularly long and narrow format therefore does not correspond to any of the known mainboard standards. It doesn't necessarily have to be, because large mining farms often do without housings or server cabinets.
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ASRock H510 Pro BTC + (Image: ASRock)
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ASRock H510 Pro BTC + 
ASRock H510 Pro BTC + 
ASRock H510 Pro BTC + The long construction of the H510 Pro BTC + is primarily determined by the six PCIe x16 slots. The slots for graphics cards are carefully arranged at a large distance from one another so that they can be fully equipped with desktop models in triple-slot design without riser cards. The x16 design of the slots is only of a physical nature.
Six PCIe 3.0 but only one 16-way
Only one slot is fully wired with 16 PCIe lanes, the remaining five are electrically implemented as PCIe x1, which is sufficient for GPU mining. With the LGA 1200 socket and the H510 chipset for Intel's mainstream CPUs, the H510 Pro BTC + is flexibly set up and prepared for modern core CPUs of the 10th and 11th generation (Comet Lake and Rocket Lake), while others are currently still available and motherboards predestined for mining with two or three generations older chipsets are only compatible with much older processors.
Power supply just as unusual
Once again, the power supply of the H510 Pro BTC + is lavish and at the same time far from a norm. On the right flank, in addition to a classic 24-pin power connection, which forms the main power supply for the platform, two more of this type are installed for better stability and sufficient power supply, distributed over several power supplies. The mainboard also has an 8-pin and four 4-pin connectors (PCIe). In addition, there are four further 4-pin Molex connections in addition to the mechanically reinforced PCIe slots, which must be used with graphics cards depending on the x16 slots being equipped.
Equipment appropriately spartan
The rest of the equipment consists of only one DDR4 slot for classic desktop DIMMs up to DDR4-3200, only one M.2 slot with SATA connection for SSDs up to a length of 110 mm (M.2 22110), one SATA each and HDMI as well as two USB 3.0 and four USB 2.0 compared to conventional desktop mainboards of that time.
ASRock H510 Pro BTC + (Image: ASRock) 
ASRock H510 Pro BTC + (Image: ASRock) The RJ45 connection offers Gigabit Ethernet via a NIC from Intel (I219V). There is one exception, however: there is a USB Type-C port on the head on the right-hand side, via which an additional graphics card can be used for mining using a riser card. ASRock also mentions buttons for power and reset soldered directly on the PCB as a special feature for a mining mainboard.
From mid-July for around 280 US dollars -Dollars available
The H510 Pro BTC + was first discovered on ASRock's website momomo_us, who shared this information on Twitter. There, the expected sales price at the Newegg dealer in the USA of just under $ 280 for pre-orderers is also mentioned. The release date is expected on July 18, 2021. When and at what price the special mainboard for mining will go on sale in this country is currently not known.