trustmebro.reviews

Lian Li B4

Physical Product · PC cases · 79 mentions · 1 subreddit · discussed in r/mffpc

Reddit take

Not enough linked mention summaries yet; the source excerpts below are the evidence.

Pros

  • Overall, I'm very happy with the case. ... Feels extremely solid. None of the panels feel flimsy or easy to bend. ... Great access to the internals. ... The vertical footprint is much smaller than I expected. ... I'm impressed with the a...
  • b4 is all mesh, and if you use a sfx psu you can install a front intake fan, so choose b4 if you prefer better temp
  • i've built in a lian li b4 3 days ago, and this seems like a top notch idea lol
  • The LianLi B4 surely is an affordable and nice looking option.
  • I reversed the airflow setup in my Lian Li B4 to blow from back to front. This resulted in a CPU idle temperature drop of a few degrees (from 49 °C down to 46 °C) at an ambient temperature of 27 °C, along with slightly lower fan RPMs

Cons

  • The pre-installed fans were screwed down way too tightly and had the anti-vibration pads completely compressed. ... The accessory bags could be labeled a bit better. ... I really wish the layout was reversible. ... Cable management is de...
  • I found it to be one of the most difficult builds I've done. Both the A3 and Fractal Terra were way easier to build in, imo. Bad things: 1. Cable management is hard as hell. 2. It was super tough to fit the GPU in. 3. Slim 15mm fans mea...
  • The final result is pretty satisfying. The PC looks extremely compact. More like a gaming console than a traditional PC. ... However, if I could choose again, I think I'd prefer the size without the aero deck, even when standing the case...
  • The b4 is not going to be a popular matx case here like the Z20 or A3 just due to it being a bad build experience and not allowing certain stuff (larger fans, top 240 aio, ATX PSU compatibility very weak where you'd want to actually go S...
  • Honestly I think the b4 has worse cable management than a3 but it's designed to not be visible ie no window

Sentiment

36 positive (46%) · 25 mixed (32%) · 18 negative (23%)

Trust + time weighted score: +24% · raw score 23%

What redditors said (10 of 79)

Overall, I'm very happy with the case. ... Feels extremely solid. None of the panels feel flimsy or easy to bend. ... Great access to the internals. ... The vertical footprint is much smaller than I expected. ... I'm impressed with the airflow considering this is all on air cooling.
positive · u/b****w · r/mffpc · Aug 1, 2026 · open on Reddit ↗
The pre-installed fans were screwed down way too tightly and had the anti-vibration pads completely compressed. ... The accessory bags could be labeled a bit better. ... I really wish the layout was reversible. ... Cable management is definitely the hardest part.
mixed · u/b****w · r/mffpc · Aug 1, 2026 · open on Reddit ↗
I found it to be one of the most difficult builds I've done. Both the A3 and Fractal Terra were way easier to build in, imo. Bad things: 1. Cable management is hard as hell. 2. It was super tough to fit the GPU in. 3. Slim 15mm fans mean it is a lot louder than my A3 build, even at idle.
negative · u/_****c · r/mffpc · comment · Aug 23, 2026 · open on Reddit ↗
b4 is all mesh, and if you use a sfx psu you can install a front intake fan, so choose b4 if you prefer better temp
positive · u/N****D · r/mffpc · comment · Aug 5, 2026 · open on Reddit ↗
The final result is pretty satisfying. The PC looks extremely compact. More like a gaming console than a traditional PC. ... However, if I could choose again, I think I'd prefer the size without the aero deck, even when standing the case vertically. The aero deck adds quite a bit of bulk.
mixed · u/T****8 · r/mffpc · Sep 9, 2026 · open on Reddit ↗
i've built in a lian li b4 3 days ago, and this seems like a top notch idea lol
positive · u/L****r · r/mffpc · comment · Sep 8, 2026 · open on Reddit ↗
The b4 is not going to be a popular matx case here like the Z20 or A3 just due to it being a bad build experience and not allowing certain stuff (larger fans, top 240 aio, ATX PSU compatibility very weak where you'd want to actually go SFX instead).
negative · u/h****p · r/mffpc · comment · Sep 7, 2026 · open on Reddit ↗
The LianLi B4 surely is an affordable and nice looking option.
positive · u/S****7 · r/mffpc · comment · Sep 5, 2026 · open on Reddit ↗
I reversed the airflow setup in my Lian Li B4 to blow from back to front. This resulted in a CPU idle temperature drop of a few degrees (from 49 °C down to 46 °C) at an ambient temperature of 27 °C, along with slightly lower fan RPMs
positive · u/L****d · r/mffpc · comment · Sep 5, 2026 · open on Reddit ↗
I almost bought the a3 but changed my mind shortly before placing my order haha. They are both really nice cases and well priced too^^
positive · u/I****3 · r/mffpc · comment · Sep 5, 2026 · open on Reddit ↗

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