Secondary PC screens used to mean sacrificing a GPU HDMI port for a tiny status display. Lian Li’s SM088X (US88 v1 Black) 8.8-inch universal screen instead runs as a USB-powered panel for hardware stats, media, or custom visuals, with a diffused ARGB frame controlled in L-Connect 3.
This review is for showcase builders and streamers who want temperature readouts, custom art, or a mini monitor without rearranging display outputs. We cover mounting options, software caveats, and the screw warnings Lian Li prints for a reason.
You will get a clear sense of who should add an 8.8-inch panel, who should skip the gadget layer, how daily use feels, and the setup path that avoids the common L-Connect detection headache.
The SM088X Black is a mini secondary display designed for PC aesthetics and telemetry rather than editing timelines. At 8.8 inches it is large enough to read temps and beautiful enough to show looped art, yet small enough to mount inside or beside a case without pretending to be a third productivity monitor for spreadsheets.
USB power and data are the strategic advantage. Lian Li describes plug-and-play connection through a nine-pin port or Type-A USB so the panel can function independently without consuming GPU video outputs. That matters when your discrete GPU ports are already reserved for a main monitor, ultrawide, or capture stack.
L-Connect 3 is the control plane. Preset themes and modular information blocks cover common hardware stats, while uploads of personal photos and videos let the screen become part of the build’s personality. Custom layouts can switch temperature units between Celsius and Fahrenheit; preset templates may keep a fixed unit, so read the mode you are using.
Mounting flexibility is unusually thoughtful. The bracket supports height and tilt adjustments and can secure to fan frames, attach to case panels, or use adhesive pads on flat surfaces. That means the same product can live as an in-case bay display or a desk-adjacent mini monitor depending on your chassis.
The diffused ARGB frame is more than a border light. Through L-Connect 3 you can tune colors and effects and aim for synchronization with the rest of a Lian Li-oriented system. In a black build, the frame becomes a controllable accent instead of a random rainbow stick.
Installation warnings are not fine print. Lian Li specifically says to use the (H) screws specified for the screen stand and 8.8-inch universal screen, and not to use the longer screw labeled “g.” Overlong screws are a classic way to damage compact electronics—follow the manual literally on this step.
Software quirks show up in the wild. If Device Manager sees the screen but L-Connect 3 does not, Lian Li’s guidance is to update to the latest software version. Budget twenty minutes for driver/software housekeeping on day one rather than assuming the panel is defective. Also note the hard platform limit: L-Connect 3 does not support Linux.
Buy the SM088X Black when you want a USB secondary canvas for stats and custom visuals inside a polished Windows showcase. Skip it if you refuse vendor software, run Linux exclusively, or prefer zero RGB accessories. For builders who enjoy L-Connect ecosystems, it is a flexible, high-visibility finishing display.
Who it's for
Windows showcase builders and streamers who want an 8.8-inch USB stats or media panel with ARGB framing and flexible mounts that do not steal GPU HDMI ports.
Who should skip it
Skip if you use Linux as your daily OS, dislike L-Connect software, or want a true portable productivity monitor with full OS desktop spanning features only.
Daily use as a secondary canvas
Use modular stat layouts while benchmarking or gaming, then switch to a calm photo or loop when you want the case to look styled rather than technical.
Keep USB routing tidy so the cable does not foul side-panel glass or intake fans.
Setup, tips & verdict
Install with the correct (H) screws only, update L-Connect 3 first, then mount with height and tilt locked before final cable management.
Verdict: a versatile black US88 secondary screen for Lian Li-friendly Windows builds that value USB convenience and customizable ARGB presence.
- USB-powered design preserves HDMI and DisplayPort for real monitors and VR
- L-Connect 3 supports themes, modular stats, plus custom photos and videos
- Flexible mounting bracket with height and tilt suits many case layouts
- Diffused ARGB frame syncs visually with broader Lian Li ecosystems
- Compact 8.8-inch size adds presence without dominating a desk or case window
- L-Connect 3 does not support Linux, limiting non-Windows showcase PCs
- Software detection issues can require updating to the latest L-Connect version
- Wrong stand screws can damage the unit—installation discipline is mandatory