MSI MEG Z490I Unify Overview

The second of our $260 Z490 mini-ITX boards is the MSI MEG Z490I Unify, which is similar in style and design. Forgoing the usual RGB lighting, the MSI Z490I Unify is the epitome of sleek and stylish, at least as far as motherboards are concerned. The board features an all-black aesthetic, with a black PCB and black heatsinks, and has a whole host of features.

Leading the impressive feature list is the inclusion of an Intel JH7540 Thunderbolt 3 controller, which is exposed as a USB Type-C port on the rear panel. The MSI MEG Z490I Unify is one of just a small selection of Z490 models which include a Thunderbolt 3 controller, while another impressive feat is the 10-layer PCB which adds another premium element to the board. Other features include two PCIe 3.0 x4 M.2 slots, with one located on the front, and another located on the rear, and four SATA ports for conventional SATA drives and other devices such as optical drives.

For hardened enthusiasts, the Z490I Unify has official support for up to DDR4-5000 memory, with a maximum capacity of 64 GB available across two memory slots. Due to size constraints, there's just one full-length PCIe 3.0 x16 slot, which sits along the bottom of the board. Focusing on networking, MSI is using a Realtek RTL8125B 2.5 GbE Ethernet controller, with the boards wireless and BT 5.1 capabilities controlled by an Intel AX201 Wi-Fi 6 CNVi module.

Onboard audio is controlled by a Realtek ALC1220 HD audio codec, which adds five 3.5 mm audio jacks and S/PDIF optical output, but at the cost of extra USB ports. That being said, there is still a USB 3.2 G2 Type-A port, a Thunderbolt 3/USB 3.2 G2 Type-C port, two USB 3.2 G1 Type-A ports, and two USB 2.0 ports. The inclusion of a small cooling fan within the rear panel cover to help keep the power delivery cool also detracts space from the rear panel cover with a fan grill.

Summarizing up the performance in our motherboard test suite, the MSI MEG Z490I Unify has the highest power consumption in our testing from any Z490 model tested so far. The difference between the other boards is marginal, however, and we didn't notice any anomalies in our power testing. This is different in our non-UEFI POST time testing with the Z490I Unify showing the fast POST times from any Z490 board we've tested so far with a default POST time of 10.3 seconds from power-up to Windows 10. We test DPC latency out of the box at stock settings, and the MSI board performed well versus the other boards in our charts. In our CPU and game testing, the MSI Z490I Unify was also competitive with no anomalies found in our testing.

Focusing on overclocking, the MSI MEG Z490I Unify has a solid 9-phase power delivery running in an 8+1 configuration, and uses 90 A power stages throughout. Despite this, we didn't manage to reach the heights we've found so far on our Core i7-10700K, which is 5.3 GHz, despite thermal throttling. The new Comet Lake desktop chips run quite hot at stock, so it doesn't take long when overclocking to hit trouble, but overall the maximum stable overclock we managed to reach on the mini-ITX Unify model was 5.1 GHz. Whether or not it was just our sample in particular, we expected quite a bit more, but the performance was acceptable, and the board's overall VDroop control at default settings were adequate. It did overcompensate a little on CPU VCore, more so than we would have liked. This adds extra heat and with little headroom available on conventional cooling, this is important to consider. 

The MSI MEG Z490I Unify is a very solid board in both the aesthetics department and in specifications, and boasts a single Thunderbolt 3 Type-C port on the rear panel. It has some interesting design choices on the rear panel and trades some space for extra capability in cooling the 9-phase power delivery system. Couple that with its 10-layer PCB, dual PCIe 3.0 x4 M.2 slots and 2.5 GbE and Wi-Fi 6 network pairing, the Unify looks to solidify its space in the Z490 mini-ITX market. 

Board Features

The MSI MEG Z490I Unify is a mini-ITX motherboard which slots into the mid-range of MSI's Z490 product stack. Along with Thunderbolt 3 support, the board offers a single Realtek RTL8125B 2.5 GbE Ethernet controller and an Intel AX201 Wi-Fi 6/BT 5.1 CNVi radio. There is two PCIe 3.0 x4 M.2 slots which also support SATA drives, and four SATA ports with support for RAID 0, 1, 5, and 10 arrays. One of the M.2 slots is located on the front of the board with an M.2 heatshield built into the chipset heatsink, while the other is located on the rear of the board. 

MSI MEG Z490I Unify ITX Motherboard
Warranty Period 3 Years
Product Page Link
Price $270
Size Mini-ITX
CPU Interface LGA1200
Chipset Intel Z490
Memory Slots (DDR4) Two DDR4
Supporting 64 GB
Dual Channel
Up to DDR4-5000
Video Outputs 1 x HDMI
1 x DisplayPort
Network Connectivity Realtek RTL8125B 2.5 G
Intel AX201 Wi-Fi 6
Onboard Audio Realtek ALC1220
PCIe Slots for Graphics (from CPU) 1 x PCIe 3.0 x16
PCIe Slots for Other (from PCH) N/A
Onboard SATA Four, RAID 0/1/5/10
Onboard M.2 2 x PCIe 3.0 x4/SATA, RAID 0/1
USB 3.1 (10 Gbps) 1 x Type-C Rear Panel (TB3)
1 x Type-A Rear Panel
1 x Type-C Header
USB 3.0 (5 Gbps) 2 x Type-A Rear Panel
1 x Header (two ports)
USB 2.0 2 x Type-A Rear Panel
1 x Header (two ports)
Power Connectors 1 x 24-pin ATX
1 x 8pin CPU
Fan Headers 1 x CPU (4-pin)
1 x Water Pump (4-pin)
1 x System (4-pin)
IO Panel 1 x USB 3.2 G2 Type-A
1 x USB 3.2 G2 Type-C (TB3)
2 x USB 3.2 G1 Type-A
2 x USB 2.0 Type-A
1 x Network RJ45 (Realtek)
5 x 3.5mm Audio Jacks (Realtek)
1 x S/PDIF Output (Realtek)
2 x Intel AX201 Antenna Ports
1 x Clear CMOS Button

Memory support is impressive with DDR4-5000 supported officially, although due to size constraints, there is only two memory slots, giving the board a maximum memory capacity of 64 GB. Audio is simplistic with a full five 3.5 mm and S/PDIF optical output powered by a Realtek ALC1220 HD audio codec. However, going full fat on the audio means the board has fewer ports available than the GIGABYTE Z490I Aorus Ultra. It's a trade-off to make the MSI more desirable for overclocking as rear panel space is also taking up by the external vent located on the I/O shield for the small fan which cools the power delivery. 

MSI MEG Z490I Unify Visual Inspection

Opening with the design, the MSI MEG Z490I Unify has an all-black and clean aesthetic throughout, with no RGB LEDs found whatsoever across the board. Users looking to add some color can use the two 3-pin RGB headers located along the top of the board. There is a large rear panel cover which covers the power delivery heatsink, which is in two parts and is interconnected via a single heat pipe. This heatsink stretches around the left hand side and top of the board which cools the entirety of the power delivery. It is also using a 10-layer PCB which is superb for a mini-ITX model. Located around the edging of the PCB are three 4-pin headers which are split between one for a CPU fan, one for a water pump, and one for a chassis fan. 

Along the bottom is a single PCIe 3.0 x16 slot, with no space for any additional slots due to the smaller form factor that is mini-ITX. For storage, the MSI Z490I Unify has two PCIe 3.0 x4 M.2 slots, with one located underneath an amalgamated chipset and M.2 heatsink on the front of the board, with the second slot located on the rear of the PCB. There is also a total of four SATA ports with support for RAID 0, 1, 5, and 10 arrays. Despite the obvious limitations on spacing for memory slots on mini-ITX motherboards, the MSI Z490I Unify does provide support for up to DDR4-5000 with a maximum capacity of up to 64 GB across two memory slots. 

The MSI MEG Z490I Unify is using a simple 9-phase power delivery system operating in an 8+1 configuration. It is using eight Intersil ISL99390 90 A power stages for the CPU section and a single ISL99390 90 A power stage for the SoC. The power delivery is controlled by an Intersil ISL69269 PWM controller. For a mini-ITX motherboard, this is a considerably large and capable power delivery system with a maximum output of 720 A for the CPU VCore. In theory, this means that the Z490I Unify should be a very capable overclocker when used with both ambient and sub-ambient cooling.

Looking at the power delivery heatsink, one section is affixed to the plastic rear panel cover and is assisted by a small cooling fan with a grill pushing the air out of the rear of the panel. Despite the cooling fan, the heatsink isn't very bulky or weighty, but MSI has pre-applied thermal pads to allow heat transfer between the heatsink and the power stages/MOSFETs.

On the audio section of the PCB is a Realtek ALC1220 HD audio codec which is accompanied by three Japanese gold audio capacitors. The codec itself is bare with no EMI shielding, and the audio PCB is separated in part by an opaque line from the rest of the board's componentry. 

One of the MSI MEG Z490I Unify's main features is the addition of an Intel JHL7540 Thunderbolt 3 controller, which is exposed on the board's sole rear USB Type-C port. In addition to this are a single USB 3.2 G2 Type-A port, two USB 3.2 G1 Type-A ports, and two USB 2.0 ports. The five 3.5 mm audio jacks and single S/PDIF optical output is controlled by the Realtek ALC1220 HD audio codec, while the board also includes HDMI and DisplayPort outputs. On the networking front, the single RJ45 port is driven by a Realtek RTL8125B 2.5 GbE Ethernet controller, while an Intel AX201 Wi-Fi 6 interface adds support for wireless and BT 5.1 devices. Finishing off the rear panel is a very small clear CMOS button.

GIGABYTE Z490I Aorus Ultra Overview GIGABYTE Z490 BIOS and Software
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  • hansip87 - Tuesday, August 4, 2020 - link

    In my country these boards are just plain expensive. Instead i went with Asrock Z490M ITX AC with 10400f. which like half the price of these boards. I know VRM not as good but for actual tiny build who really cares? Reply
  • Beaver M. - Thursday, August 6, 2020 - link

    ASRock is pretty awesome with ITX boards. Its still sad that they dont do their ITX-E series anymore, though.
    The much bigger problem is their 10+ year old issues with long or extended USB cables losing connection from time to time or not working at all. No other manufacturer has those issues.
    Back in the day you could at least dodge it by using the extra USB chip onboard for devices that had longer or extended cables, which handled newer USB standards, but nowadays they are all integrated by Intel, and thus they all have the same issue on ASRock boards.
    Reply
  • artifex - Friday, August 7, 2020 - link

    If you're not overclocking, I'll bet it's fine. Reply
  • Tomatotech - Tuesday, August 4, 2020 - link

    Nice review. But I’m not sure who in AnandTech’s readership is going to buy these boards. Intel sales to the DIY / home build sector are dropping off a cliff - most of the top selling CPUs on Amazon are now AMD. Reply
  • Showtime - Monday, August 10, 2020 - link

    I'm sure lots of people at AT are into ITX . Intel hasn't fallen off that much. AMD simply has louder fans. You couldn't find a 10600k for months, and Intel sales are strong going by pricing. I noticed this article because I was looking at an i7 10700 over a 3700x. They trade blows with the 10700 being slightly better at gaming at basically the same overall price (CPU/Mobo/RAM). So AMD may have the 6 core, and lower covered, and the higher counts covered, but somehow that vanilla 10700, that AT did meh review on, ends up being a better buy than the very popular 3700x for me. Reply
  • Koenig168 - Tuesday, August 4, 2020 - link

    Waited quite a while for this review. Gigabyte has done a really impressive job with VRM cooling recently. While I like the Unify for its aesthetics, I could have done without the VRM fan and would prefer instead a beefier passive cooler. Now if MSI could fix that and replace the Intel chipset with an X570 or B550, that would be perfect. :) Reply
  • Beaver M. - Thursday, August 6, 2020 - link

    The first thing I look at especially ITX boards (since you cant just add an addon USB slot bracket) is the amount of USB ports.
    MSI fails completely at that.
    Gigabyte isnt much better though, because they messed up the audio connections.
    Also ITX boards shouldnt waste that much space with SATA ports anymore. 2 are more than enough.
    Fixed WIFI is bad too. I know its integrated nowadays in Intel chipsets, but standards change and some people dont need WIFI at all, or need to use USB WIFI anyway, because they need to position their antennas far away. Wasted space on the backplate and PCB.

    Also they are completely overpriced.
    Reply
  • JlHADJOE - Friday, August 7, 2020 - link

    All I really need to know here is how MSI treats the smaller reviewers like crap, which automatically disqualifies them in my book for the next 5-10 years. Reply
  • Oxford Guy - Saturday, August 8, 2020 - link

    The names of these products are preposterous. Reply
  • saol - Sunday, August 9, 2020 - link

    Hope there will be the B550 mini-ITX showdown. Reply

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