Lian LI B4-mATX 21.3L PC Case
Today
Typical price$70
Amazon: the cheapest today among the stores checked
Buy on AmazonLian LI B4-mATX 21.3L PC Case or NZXT H5 Flow?
Cost the same today, across the stores checked.
Lian LI B4-mATX 21.3L PC Case is the cheaperNZXT H5 Flow is the cheaper
The comparison in detail
NZXT H5 Flow
Today
Typical price$70
Amazon: the cheapest today among the stores checked
Buy on AmazonAffiliate links: if you buy, the store pays us a commission at no cost to you.
Both prices over the last 30 days
First data point for one of the two: the chart appears as the days go by.
Still only a few days of data for both to read the trend; the chart fills in as the days go by.
Where is each one cheapest today?
Updated 06/11/2026
B4-mATX 21.3L PC Case
- Amazon Lowest price$70Buy on Amazon
H5 Flow
- Amazon Lowest price$70Buy on Amazon
Spec sheet side by side
| Item | B4-mATX 21.3L PC Case | H5 Flow |
|---|---|---|
| Specs | ||
| Type changes | Micro ATX | ATX |
| General | ||
| Model changes | B4-mATX 21.3L PC Case | H5 Flow |
Other comparisons
B4-mATX 21.3L PC Case orCooler Master Elite 301 Lite White Micro-ATX High Airflow Minimalist PC Case$70Compare- H5 Flow orCooler Master Elite 301 Lite White Micro-ATX High Airflow Minimalist PC Case$70Compare
B4-mATX 21.3L PC Case orFractal Design Pop 2 Air Black TG$70Compare
B4-mATX 21.3L PC Case orMontech TG3 Panoramic ATX PC Case$70Compare
H5 Flow orStruxvex S6 Micro-ATX PC Case$70Compare- B4-mATX 21.3L PC Case orStruxvex S6 Micro-ATX PC Case$70Compare
How we choose
Source: Catalog of partner stores, checked on 06/11/2026.
Lowest price seen for the product in the stores we read, on the day it was read, before sales tax. The model is the brand plus the name of the PC case; the versions go in the table. The price range, the median and the position use only models with a score; the price comparison looks at models whose score is within 0.5 points.
The spec score doesn’t measure airflow or build quality or durability, and the strong or weak point reading is just a comparison of numbers, not a buying recommendation.