Professional users looking to purchase an ASUS Z390 board without much of the cost-upping controllers and aesthetics will probably be looking towards the Prime series. The Prime series offers an entry-level jump onto the chipset with bare minimum features, but like the rest of the Z390 chipset, they still support overclocking through the Z390 chipset and look to offer better value overall than the far-reaching gaming targeted boards.

ASUS Prime Z390-A

Starting with the premier entry-level Prime range, the ASUS Prime Z390-A is an ATX sized motherboard and features a white, silver and black design throughout. The board has a white rear panel cover and chipset heatsink, with integrated RGB on both with support for ASUS AURA Sync. The PCB has a white patterning which contrasts quite nicely and represents one of the more subtle looking ASUS Z390 options. The Prime Z390-A has three full-length PCIe 3.0 slots with two getting treated to ASUS Safe slot armor protection and the slots operate at x16, x8 and x4 from top to bottom. This means the Prime Z390-A officially supports two-way SLI and up to three-way CrossFire multi-graphics card configurations.

Memory capability comes from four RAM slots with support for DDR4-4266 and a maximum capacity of up to 64 GB. The storage solutions offered on the Prime Z390-A include two PCIe 3.0 x4 M.2 slots, with only one of them offering support for SATA drives; this seems to be a regular occurrence on the ASUS Z390 line-up. Also included are six SATA ports with the ability to operate RAID 0, 1, 5 or 10 arrays.

This top Prime Z390 model has a total of seven USB ports consisting of three USB 3.1 Gen2 Type-A, one USB 3.1 Type-C, two USB 3.0 Type-A and two USB 2.0 ports. A combined total of six audio ports split into five 3.5 mm audio jacks and single S/PDIF optical output controlled by a Realtek S1220A HD 8-channel audio codec, with a single LAN port being powered by an Intel I219V Gigabit networking controller. Finishing off the rear panel is a DisplayPort and HDMI 1.4b pairing of video outputs, as well as a handy PS/2 keyboard and mouse combo port.

The ASUS Prime Z390-A has an unknown MSRP as of yet and looks to offer users not looking to spending the additional budget on gaming related feature sets and flashy aesthetics; RGB is included on this model and white panels with RGB sets this system up really well from a design perspective. The native integration of USB 3.1 Gen2 into the Z390 chipset has been used well on this board and it looks to be a popular board for users not looking to use a WI-Fi enabled model.

ASUS TUF Z390 Plus Gaming Wi-Fi ASUS Prime Z390-P
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  • gavbon - Tuesday, October 9, 2018 - link

    Thank you Hickory, will update now; this information wasn't available to us at the time
  • bill44 - Tuesday, October 9, 2018 - link

    All this boards, but only 1 with Thunderbolt 3. Looks like Thunderbolt 3 is dead (free or not).
    Type C ports and HDMI 2.0 is in short supply too.

    Hopefully next year, we can have two or more USB C (maybe even 3.2), HDMI 2.1, PCIe 4/5 and Thunderbolt 3/4 (Titan Ridge?). Or maybe not, just the same old things hoping for 2020/21.
  • DanNeely - Tuesday, October 9, 2018 - link

    There's no licensing fee for TB, the controller chip itself still costs money (IIRC $20 or $30) and still eats 4 PCIe lanes. Worse, IIRC to make the video out feature work they need to be CPU lanes; meaning that adding it means your main GPU slot is an x8, and the secondary one only x4.
  • gavbon - Tuesday, October 9, 2018 - link

    Yeah it's a case of certain vendors opting to dismiss including TB3 ports, which only seems sensible on mini-ITX boards where PCIe lanes aren't too much of an issue. Consumer choice is important though and I'm still glad ASRock has included it; it could be a key buying decision for some!
  • gamingkingx - Friday, October 12, 2018 - link

    Just too bad it is only wired as a x2.. And it is wired into the chipset as far as I am aware, so you are gonna max out your I/Os pretty fast.
  • bill44 - Wednesday, October 10, 2018 - link

    Sure, anything you add will cost something. The are plenty of non-gamers who prefer TB3 vs x16.
    This also highlights how old current PC architecture is. Either we need more PCIe lanes, or faster lanes. Otherwise, all advances will be hindered.

    Up to 6 USB 3.1 Gen 2 ports? You’ be lucky to get 4. Why can’t we have 6 Gen2 ports and the rest Gen1 an no antiquated USB 2.0? PCIe resources.
    All new peripherals use Type C, but this boards generally give you only 1 (saving money on redrivers). USB 3.2 (20 Gbps)? When it comes around, ithis too will need more PCIe lanes. M.2. PCIe 3.0 x4? All lanes are maxed out; the only way forward is faster lanes.

    In the past, Gigabyte was a TB3 champion including the functionality on many of their boards. Now, not a single one.

    Cost saving by motherboard makers? Prioritising gamers? Or simply no demand for TB3.
    The outcome is the same.
  • repoman27 - Thursday, October 18, 2018 - link

    Intel merely said that they planned "to make the Thunderbolt protocol specification available to the industry under a nonexclusive, royalty-free license" sometime this year. This hasn't happened yet, and is referring to the protocol spec, not the silicon that Intel produces. If and when they decide to do this, ASMedia or whoever could then begin development of their own Thunderbolt controllers. This means that third-party controllers probably won't appear in shipping products until sometime in 2023.

    As for the currently available Thunderbolt 3 controllers, tray prices range from $6.45 to $9.10. But you also need a USB Type-C and PD controller, power switch, and high-speed mux which runs around $4.59, plus the connector and a few other bits. I don't believe Intel charges a royalty on finished Thunderbolt products, but they do require licensing and certification which are paid for by the OEM and may add significant cost to relatively low-volume products.

    AFAIK, Windows PCs are still required to connect Thunderbolt controllers via the PCH. Apple is the only one using PEG lanes for Thunderbolt, and they don't do that on the 27-inch iMacs where it might adversely impact the GPU.
  • Dug - Tuesday, October 9, 2018 - link

    I hope it's not dead. Far more useful than USB C. I would be fine with USB C except there doesn't seem to be a good USB C to USB C hub, which really restricts how many devices you can use. I'm really glad to see it on ASRock itx board so I can attach a portable SSD array.
  • imaheadcase - Wednesday, October 10, 2018 - link

    Tons of monitors of USB-C, anker sells USB-C hubs, I don't think i've seen thunderbolt in a desktop PC to date though. That best part of USB-C is being able to just plug phone into it and copy paste to desktop files (no Microsoft didn't invent that, it was always that way by default in windows)
  • Valantar - Wednesday, October 10, 2018 - link

    TB3 is far from dead, it just has little use in desktop PCs. Have you looked at laptop lineups recently? TB3 is _everywhere_. My workplace (a major university here in Norway) has moved entirely to TB3 docking solutions as they're the only full-featured and universal(-ish) solution.

    eGPUs are useless on desktops. Desktops don't need docks. USB 3.1 is plenty fast for external storage, and if you need faster storage, desktops can fit that internally. The only real use cases for TB3 on a desktop are TB3 networking (for fast direct transfers between PCs) and adding things like extra NVMe or >GbE networking on ITX boards that don't have room for that and a GPU.

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