Visual Inspection

The ASRock X570 Phantom Gaming-ITX/TB3 is a mini-ITX motherboard which is priced for the mid-range of X570 but has some very premium features. This makes it one of the most versatile small form factor models on the AM4 socket. The design feels refined and fits in line with its other Phantom Gaming branded models with red and black accents on the aluminium rear panel cover and heatsinks. It wouldn't be a Phantom Gaming series motherboard without at least some integrated RGB which is located at the bottom of the board. Users looking to expand on the RGB capabilities can do so via a single addressable RGB header and standard RGB LED header. 

The most notable design aspect to consider from the ASRock X570 Phantom Gaming-ITX/TB3 is the supplied cooling mounts. Here we have an AM4 motherboard, but it uses Intel cooling spacers, not AMD. Seems odd, right?

ASRock's decision is down to low profile cooling support. Low profile offerings on AM4 are a little lacklustre in comparison to Intel's current desktop mount. The idea is that users can use the ASRock X570 Phantom Gaming-ITX/TB3 with a low profile cooler in a smaller form factor mini-ITX chassis to save space. While the majority of users are questioning what the logic is behind this, this model is mini-ITX and as such, there aren't as many low profile coolers available on the market for AM4 as there are for LGA115x. Including an Intel mount on this smaller form factor AMD board improves cooler compatibility with some coolers, but the implementation of the heatsinks does cause concern that some coolers just will not fit. ASRock does include its cooler compatibility list for this board with supported models from Corsair, Noctua and Silverstone, but it's a little bare and the heatsink placement on this model will certainly hinder the installation of larger air coolers on the market.

At the bottom is a single PCIe 4.0 x16 slot which includes a coating of ASRock's Steel Armor slot re-inforcement. The restrictions on mini-ITX models also mean that there are only two memory slots which allow users to install up to 64 GB. Memory overclockers typically favour dual-slot boards and the ASRock X570 Phantom Gaming-ITX/TB3 does have support for DDR4-4533 which is one of the fastest out of the box compatibilities of any X570 model on the market. Due to space limitations, there are fewer fan headers included too with just three 4-pin headers featured; these are divided into a single header for the CPU, a CPU/water pump, and a chassis fan header. Providing power to the board is a 24-pin 12 V ATX motherboard power input, while a single 8-pin 12 V ATX CPU power input delivers power to the processor.

Touching on the power delivery, and the ASRock X570 Phantom Gaming-ITX/TB3 is using a 10-phase setup with a 4+2 controller, relying on doublers on the CPU section. The CPU section is using eight Renesas ISL99227 60 A power stages which are paired up with four ISL6617A doublers. On the SoC section, the ASRock X570 Phantom Gaming-ITX/TB3 is using two ISL99227 60 A power stages similar to the CPU section, but without doublers. This means the Renesas ISL69147 PWM controller is operating at 4+2. As is the norm with most motherboard models, each power stage is complemented with its own inductor. For such a small board, the ASRock X570 Phantom Gaming-ITX/TB3 power delivery is solid and is made of up of high-quality components. Although high power in small packages generally increases thermal output, the power delivery heatsinks look and feel more than adequate up to the job; something we explore in our thermal VRM testing later on in the review.

On the rear of the PCB is the sole PCIe 4.0 x4 M.2 slot which accommodates drives up to M.2 2280. Surprisingly, the solitary M.2 slot doesn't support SATA based drives, but users can make use of the four SATA ports which allows users to use RAID 0, 1, and 10 arrays. The hotter running NVMe based M.2 SSDs may experience a thermal bottleneck under intense loads as there is no heatsink on the rear of the board. This means users looking to use an NVMe drive with this board will need to consider cooling within a chassis to maximise performance.

Located underneath the aluminium rear panel cover and the combined power delivery/chipset heatsink is Intel's Titan Ridge JHL7340 Thunderbolt 3 controller. This offers users with a Type-C on the rear panel with up to 40 Gbps of throughput with TB3 devices. The single DisplayPort 1.4 input on the rear panel also allows users to hook-up a discrete graphics card to the Type-C port which means users drive multiple 4K panels from the DisplayPort 1.4 input. Thunderbolt 3 isn't commonly implemented on other X570 models with some vendors including front panel connectors with AIB cards, but ASRock is the only manufacturer to offer a comprehensive 40 Gbps solution on the rear panel on its AMD models.

The onboard audio on the ASRock X570 Phantom Gaming-ITX/TB3 is powered by a Realtek ALC1220 HD audio codec, with a front panel header present for users reliant on the chassis I/O. The audio PCB area is a little cramped with just two Japanese gold audio capacitors, and some basic PCB segregation which isolates it from the rest of the board for reduced EMI. The ALC1220 codec itself isn't EMI shielded, but ASRock does use individual PCB layers for both the R and L audio channels. Stuck to the rear of the audio connectors on the rear panel is the boards CMOS battery.

On the rear panel we find the single Thunderbolt 3 Type-C connector which is the highlight of the board. The ASRock X570 Phantom Gaming-ITX TB3 also includes two USB 3.1 G2 Type-A and two USB 3.1 G1 Type-A ports. A Realtek ALC1220 HD audio codec powers the five 3.5 mm gold plated audio jacks which also includes an S/PDIF optical output. Moving from left to right on the other connections are a PS/2 combo port, two Intel AX200 802.11ax wireless antennae ports, and a small clear CMOS button. For users of AMD's Ryzen 3000 APUs, ASRock includes a single HDMI 2.0 video output, while the DisplayPort 1.4 input is present for users to interconnect a discrete graphics card with the Thunderbolt 3 Type-C port for multiple 4K monitor compatibility. Finishing off the rear panel is a single Ethernet port powered by an Intel 

With only four rear panel USB ports, the board feels like it doesn't have enough Type-A ports present for modern-day gamers with plenty of peripherals and accessories, but opting for Thunderbolt 3 will pique interest due to its uniqueness and functionality.

What's in the Box

The accessories within the packaging of the ASRock X570 Phantom Gaming-ITX/TB3 are everything users need to get a system up and running out of the box. Included are two SATA cables, an M.2 screw kit, a driver and software installation disc, a quick installation guide, an ASRock sticker, and an Intel AX200 Wi-Fi antenna.

  • 2 x SATA cables
  • 1 x M.2 installation screw
  • Driver and Software installation disc
  • Installation manual
  • Intel AX200 Antenna set
  • ASRock sticker
ASRock X570 Phantom Gaming-ITX/TB3 Overview BIOS And Software
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  • GreenReaper - Wednesday, October 9, 2019 - link

    I think that's because Thunderbolt at a lower level works over individual 10Gbps lanes. You can have multiple "ports" but then you'll have multiple interfaces - perhaps you can team them at a higher level? But if it's Alpine Ridge you'll almost certainly be limited to low-power 10Gbps.
  • firewrath9 - Wednesday, October 9, 2019 - link

    huh? 18TB of SSD storage?
    My asrock Z87 Extreme11, with its 22 sata ports can do EIGHTY-EIGHT TB OF SSD

    also if 10gbe costs 100$, why is the X470 Taichi Ultimate only 50$ more than the non-ultimate? (it also has other additonal features)
  • lmille16 - Thursday, October 10, 2019 - link

    Your board is an EATX board. DCide is talking about mITX boards....
  • siuol11 - Friday, October 11, 2019 - link

    I'd settle for 2.5 or 5G ethernet, both have readily available chips that cost under $10, and Intel is about to release one (the 225V) that costs less than $2.50.
  • masteraleph - Thursday, October 10, 2019 - link

    No, the M.2 is a big deal. If you're stuffing this into a small case- and plenty of people buying X570 ITX boards will- there's a big advantage to not having any 2.5" drives in the case, whether for airflow, cables, what have you.
  • Calamarian - Thursday, April 16, 2020 - link


    You could always bifurcate the slot and add a 10GB NIC!

    Some cases come with!
  • umano - Thursday, October 10, 2019 - link

    I am so happy I am not alone with this, 16 cores and thunderbolt means one thing, content creator, not a gamer. I mean the cheapest thing you can attach to TB3 is a 10gbe (200$).

    There are a lot of video makers and some colourists (who do not need to work with 6-8k raw) that own the x299 itx because it can be portable even in a backpack.

    Unless they have the crazy idea of putting a threadripper on a DTX board they lost a great opportunity. This board is a compromise for everyone, too expensive due to tb3 to who is budget-wise, as a gamer I would go with gigabyte for the 2 m2 and the backplate armour (and a very respectable 8 phase vrm) or better the dtx Asus board.

    This board can be good only if someone wants a very portable setup with no GPU and they need a faster (x4 PCI 3) GPU. So almost none

    I think except Asus maybe, but they were not that good either, manufacturers went very wrong with PCIe 4.0 and the x570.
    Asrock could have used the 4x link from the chipset (like only Asus did on their pro board reviewed here) for the second m2, they could have swapped 2xUsb3 5gbs with 2 basic usb3 port for mouse and keyboard with the lanes shared with the wifi module (it will never need full bandwidth and how much data transfer is there for mouse and keyboard) so here you are the 10gbe.
    I cannot think the number of devices that can saturate a TB3, 2 x 10gbps usb3 and 2x5gbps.
    I have a Wacom tablet, 2 Eizo with 5gbps USB 3 hubs, a das, several and different external drives, HDD, SSD, and a printer. Even with one 10gbps USB, it would have been fine, we can have tb3, who needs to connect 2 nvme external drive? By the way 4 SATA ports without raid 5?

    The 2080ti barely (2-3%) saturates a PCI 3 8x link, sharing the lanes between the GPU and the third m2 is not blasphemy at all, so there will be bandwidth, 12x PCIe 4, for a dual GPU card more powerful than a dual 2080ti.

    So now I need to change pc and I will buy this board because of the TB3 but I hope they will understand their mistake and someone will release something better, way better

    Now I have to spend 250 for the board, 300 for a thunderbolt dock with 10gbe (connected to the NAS) that I cannot use while I am using my raid das, 300+ for 64gb instead of 32gb because I cannot have a fast nvme drive for photoshop/DaVinci cache, and I still don't know how much for 2 custom water block for VRM, and other 40 for the chipset block and probably I will buy a USB DAC for headphones

    So I know it is almost impossible to have a sabre and 3 m2 on an itx board but at least for me a board with that stuff and a big block for vrm and chipset, that could have saved some space for extra daughter boards, it is worth more than 900+ and still I would have saved money

    I know it is insane and liquid cooling is not for everyone, but an ITX motherboard with 2 m2, tb3, 10gbe and some USB ports (maybe a second tb3) sharing the GPU link it is not unreasonable.

    They probably did not do it because they want content creators going with threadripper, but 3d is not the only thing that matter, video has the largest market, and we cannot bring matx cases onset easily, especially because they are ugly and the market is accustomed to see apple products, so we get no money from it, so I will not buy threadripper even I know it is amazing

  • FiveOhFour - Saturday, January 11, 2020 - link

    you have other options come on
  • CheapSushi - Saturday, October 12, 2019 - link

    Reaallly wish ASRock and others would push for Mini-DTX! With a second PCIe slot. Put the M.2 somewhere else. :O
  • Calamarian - Thursday, April 16, 2020 - link

    With both 10GB USB 3.2 and Thunderbolt I'd bet it's more an issue of available PCIe lanes than MB space...

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