Your needs, this model
Does it fit your priorities?
Can I use two 5Gbps USB-A ports, one 5Gbps USB-C port and both card formats together?
Qualifies in the documented arrangement. The other two USB-A ports remain USB2.
Explore this need in the finder →Can all four USB-A ports meet a 5Gbps requirement?
Fails: two USB-A ports have only the 480Mbps USB2 specification.
Explore this need in the finder →Can HDMI provide 4K60?
Fails: HDMI alone is specified at 4K30.
Explore this need in the finder →A broad connector mix with an important speed split
The ICZI IZEC-TH15 is useful when a supported USB-C computer needs many different connection types around one desk. It combines HDMI, VGA, wired networking, audio, card readers and both USB-A and USB-C data outputs. The important detail is that its four USB-A sockets are not equally fast: two are USB3.0 at 5Gbps and two are USB2.0 at 480Mbps.
That distinction makes it possible to reserve the faster sockets for storage while leaving a mouse or keyboard on the older ports. It also prevents a misleading four-port 5Gbps match. Anyone requiring four USB-A accessories each with a 5Gbps capability should choose a different hub, even though IZEC-TH15 has four physical USB-A sockets.
The USB-C roles are genuinely separate
The original manual identifies a USB-C computer connector, a USB-C PD3.0 input and a separate USB-C data socket. Unlike hubs that share one physical downstream C socket between data and a charger, this layout keeps the data output available when a charger occupies the PD input. The USB-C data connection is specified at up to 5Gbps.
The charging function is documented, but the retained manual does not establish a numeric input ceiling or a separate maximum delivered to the notebook. Do not turn the PD3.0 version number into a guessed charging wattage. The listed package contains the hub, user manual and warranty card, without a charging supply.
HDMI and VGA have different limits
Used alone, the HDMI socket supports 3840 ×2160 at 30Hz. The VGA output supports 1920 ×1080 at 60Hz. The manual says using HDMI and VGA together limits output to 1080p. That simultaneous-output statement does not clearly establish two independent extended desktops, so this review does not convert it into a two-desktop buying guarantee.
The computer must provide video over its USB-C connection. ICZI names DisplayPort Alt Mode and gives MacBook Pro 2017 and 2018 among its examples. A USB-C data-only socket cannot drive the native HDMI or VGA route. The manual says no driver installation is needed for the hub; it does not describe a USB graphics application that could manufacture video from an otherwise data-only host.
Cards and network deserve their own specifications
Both a full-size SD card and a microSD card can be used at the same time, an explicit statement in the English manual. Their reader connection is listed at USB2.0 speed, up to 480Mbps. That lower card-reader ceiling should not inherit the 5Gbps rating of the neighboring USB3.0 ports. A camera-card workflow can therefore fit the hub's slot arrangement without becoming a high-speed reader benchmark.
The Ethernet interface supports 10, 100 and 1000Mbps links. A3.5mm audio output is also present. Those functions broaden the port mix, but they still use the hub's shared connection and power arrangement. The number of different connectors does not make simultaneous data movement or power consumption unlimited.
Follow the manual's practical setup cautions
ICZI warns that starting every interface together can exceed the computer's available starting current. It recommends attaching connections in sequence when needed and limits high-consumption equipment such as mobile hard drives or printers to two at once, with low-current accessories on the other ports. That is useful guidance for building a realistic peripheral plan.
The manual also suggests placing 2.4GHz keyboard or mouse receivers on USB2.0 sockets when nearby USB3.0 equipment interferes. Its speed distinction is therefore a layout advantage for that specific troubleshooting step. These are manufacturer instructions, not outcomes of testing performed for this review.
Check the physical and operating-system fit
The zinc-alloy body has a silicone surface, measures 291 ×76 ×21mm and weighs 230g. It is longer than a pocket-sized four-port hub. The documented operating-system list is historical, including Windows versions through 10 and generic MacOS9.X/10.X; it does not identify exact later Apple chips. Choose it for the supported mixed-port desk, and choose a simpler or faster hub when uniform USB speed or a precisely specified two-screen configuration matters more than variety.
Key details at a glance
| USB-A downstream data ports | 4 |
|---|---|
| USB-C downstream data ports | 1 |
| HDMI outputs | 1 |
| Analog VGA outputs | 1 |
| Full-size SD slots | 1 |
| microSD slots | 1 |
| Simultaneous card slots | Yes |
| Advertised Ethernet link ceiling | 1Gbps |
| Power adapter included | No |
| Detachable host cable | No |
| Stated product weight | 230g |
| Screen arrangement | HDMI alone supports 4K30; VGA alone supports 1080p 60. Combined output is limited to 1080p; two independent desktops are not established. |
| Power and charging | A separate PD3 USB-C input supports computer charging. Input/net wattage is unstated. The manual lists the hub, guide and warranty material in the package. |
| Data and device limits | Two USB-A5Gbps ports, two USB-A480Mbps ports and a separate USB-C5Gbps data output. The SD/microSD readers use USB2 speed and can operate together. |
Use the exact model’s instructions for operating limits, supplied equipment and version differences.
Sources for this assessment
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