U320 Minimalist Art for Your Desk
Have you ever imagined a PC case that looks like a piece of desktop art?
It features no flashy, scrolling RGB lights and no angular "gaming armor." Instead, it is a smooth, white cube
—reminiscent of fine jade—standing quietly at the corner of your desk. With its fluid lines and pristine surface,
not a single screw is left exposed.
The SOEYI Phoenix U320 is a case designed specifically for this aesthetic.

Unibody construction: eliminating the "pieced-together" look
How are traditional cases made? Front, side, and back panels—several steel sheets assembled together
—inevitably reveal seams, screws, and joints that give off an "assembled" vibe.
The Phoenix U320 takes a completely different approach: the front, right, and rear panels are formed from a single
sheet of steel bent into a U-shaped structure.
There are no assembly seams or exposed screws, and the corners feature smooth, rounded curves. The entire case
looks as if it "grew" from a single piece of steel—a seamless, unified whole. This craftsmanship delivers a premium
visual appeal that ordinary assembled cases simply cannot match.
From a standard viewing angle, not a single screw is visible.
0.8mm steel: solid performance in a compact form
Unibody construction offers more than just good looks; it provides genuine structural integrity.
The Phoenix U320 features steel panels with a thickness of 0.8mm. To put that in perspective: many competing
cases in the same price range use steel only 0.5–0.6mm thick. This substantial increase in thickness translates into
a tangible sense of solidity and stability—the side panel doesn't cave in when pressed, and there is no unsettling
"wobble" when moving the unit.
Reviews have noted that the 0.8mm steel is strong enough to withstand the weight of an 80kg (160-jin) person sitting
on it without deforming. Whether it’s the occasional bump during daily use or the jostling that comes with moving it
around, this compact case handles it all with ease.
A "Golden Ratio" 14.6L Volume—Perfect for the Desktop
The Phoenix U320 measures 350 × 165 × 310 mm, with a volume of just 14.6 liters.
When placed on a desk, it looks far more refined than a traditional Micro-ATX (mATX) case. Its slim 165mm width
Ensures a minimal desktop footprint. Aluminum alloy handles at the top and bottom give it a style reminiscent of
the Mac Pro.
It strikes the perfect balance: offering mATX compatibility while maintaining a compact form factor close to that
of an ITX case.
Compact Yet Spacious—Accommodates Mainstream Hardware
Despite its small size, it makes no compromises on compatibility:

Supports full-sized Micro-ATX and Mini-ITX motherboards.
GPU length limit: 310mm—
Accommodates most mid-to-high-end graphics cards on the market.
Air cooler height limit: 135mm.
Supports installation of a 240mm liquid cooler using the included bracket.
Compatible with both ATX and SFX power supplies.
Storage options: Three 2.5-inch SSD slots, or a combination of two SSDs and one 3.5-inch HDD.
The front I/O panel is generously equipped: one USB 2.0 port, two USB 3.0 ports, one Type-C port, and a combo
audio jack. This "3A1C" configuration offers more connectivity than many full-tower cases.
80,000 precision-cut vents—no compromise on cooling.
What is the biggest fear for small cases? Becoming a "hotbox."
The Phoenix U320 puts serious effort into thermal performance, featuring approximately 80,000 precision-cut
ventilation holes across its body. The side panels, top, and bottom are almost entirely ventilated, with additional
cutouts on the rear panel and motherboard tray.
The bottom and rear panels utilize a mix of large and small perforations—large holes ensure high airflow, while
small holes balance this with dust protection. The motherboard tray also features arrays of circular and slotted vents
positioned specifically over the CPU and PCIe slots to provide targeted cooling for these two major heat sources.
Regarding airflow, case creates a vertical cooling path: cool air is drawn in from the bottom, and hot air is exhausted
through the top and rear—aligning with the natural tendency of hot air to rise.

Fan support is also highly flexible:
Top
: Two 80mm or 90mm fans
Bottom
: Three 90mm or two 120mm fans
Rear
: One 80mm or 90mm fan
Reviews indicate that within this compact 14.6-liter space, this cooling configuration effectively keeps the temperatures
of the R7-7700 and RTX 4060 Ti well within safe limits.

Final Thoughts
The SOEYI Phoenix U320 is a compact case designed for desktop aesthetics that refuses to compromise on
performance or thermal efficiency.
With its unibody U-shaped structure, sturdy 0.8mm thick panels, an optimal 14.6-liter volume, support for 310mm
graphics cards, and a vertical airflow design featuring 80,000 ventilation holes—it delivers everything you need.
If you appreciate a minimalist, aesthetic and want a compact case that looks great on your desk, accommodates
mainstream hardware, and offers cooling performance, Phoenix U320 is well worth serious consideration.