Dell S3221QS VESA Mount Size & Fit
Quick answer
The Dell S3221QS uses a 100×100 mm VESA pattern (M4 screws). Screw spec: M4 x 10 mm. The S3221QS weighs 16.3 lb (7.4 kg) without the stand, so any arm, stand or bracket rated for 100×100 mm and at least 16.3 lb will hold it. Verified against the Dell documentation — see source below.
S3221QS mounting specs
| VESA pattern | 100×100 mm (3.9×3.9 in) |
|---|---|
| Screw thread | M4 |
| Screw length | M4 x 10 mm per the S3221QS user guide Wall Mounting (Optional) section |
| Weight without stand | 16.3 lb (7.4 kg) |
| Screen size | 32 in (curved) |
| Model year | 2020 |
| Series | S Series |
| Known aliases | S3221QSc |
| Source | Manufacturer documentation |
1800R curved 32-inch 4K panel; the curved back is compatible with standard flat 100x100 plates via the recessed mount area. User guide lists 7.4 kg (16.25 lb) without stand (Dell US product page rounds to 16.2 lb).
Among the 4 verified 32-inch monitors here, the S3221QS is the heaviest at 16.3 lb — the range runs 12.1 to 16.3 lb.
Model-specific mounting notes
Curved panel
The S3221QS is curved, so the area around its 100×100 mm holes is not a flat plane. Use an arm or bracket with a compact plate (most 75/100 mm plates qualify) and the spacers the manufacturer supplies, so the plate doesn't press on the curved housing.
Arm, stand or wall bracket for the S3221QS
All three use the same 100×100 mm holes. A desk-clamp arm frees the footprint and adjusts in every axis; a freestanding VESA base replaces a wobbly factory stand; a wall bracket clears the desk but fixes the height. Whatever you pick, the rating must cover 16.3 lb — the full decision guide is VESA monitor mounts.
Wall mounts that fit the S3221QS
From our mount database: pattern covers 100×100 mm, the rating clears the S3221QS's 16.3 lb with a 20% margin, and 32-inch screens are in range.
WALI 1330LM Articulating 13-42
Small-TV arm for kitchens and offices; folds to 2.6 in from the wall.
Supports VESA 75×75 up to 200×200 mm and 44 lb — clears the S3221QS's 100×100 mm / 16.3 lb.
Wall: single stud OK
PERLESMITH PSTK1 Tilting
Compact tilting bracket for small rooms and single-stud walls.
Supports VESA 75×75 up to 400×400 mm and 115 lb — clears the S3221QS's 100×100 mm / 16.3 lb.
Wall: single stud OK
PERLESMITH PSMFK1 Fixed
Slim fixed mount with quick-release tabs for easy cable access.
Supports VESA 75×75 up to 400×400 mm and 88 lb — clears the S3221QS's 100×100 mm / 16.3 lb.
Wall: single stud OK
Double-check before buying
- Pop off any plastic caps and confirm 4 threaded holes at 100 mm across and 100 mm vertically, center-to-center.
- Check the M4 bolts seat by hand before torquing — thin monitor housings punish over-long screws.
- Compare the model code on the rear label with this page (S3221QS) — same-series panels can differ.
Frequently asked questions
What VESA pattern does the Dell S3221QS use?
The Dell S3221QS uses a 100×100 mm VESA pattern — 100 mm between hole centers horizontally and 100 mm vertically. Any monitor arm, stand or wall bracket listing 100×100 mm fits directly. Confirm on the back of your unit, since some retail variants of a series differ.
What screws does the S3221QS need for an arm or mount?
The S3221QS takes M4 metric screws. Documented spec: M4 x 10 mm per the S3221QS user guide Wall Mounting (Optional) section. Most arms ship M4 hardware in two lengths — hand-test the shorter one first; a bolt that bottoms out can damage the housing.
How much does the S3221QS weigh without the stand?
The S3221QS weighs 16.3 lb (7.4 kg) without the stand. Typical desk arms list roughly 9–20 lb per screen, so check your arm's exact rating — and its supported screen-size range — against these numbers before buying.
Will a standard monitor arm hold the S3221QS?
Any arm that lists the 100×100 mm pattern, carries at least 16.3 lb and covers 32-inch screens will hold it — for this curved panel, prefer arms with a compact plate and use the supplied spacers or adapter hardware. The desk matters too: clamps need a solid edge; glass desks call for a grommet mount or freestanding base.
Can the S3221QS be wall-mounted?
Yes — the same 100×100 mm holes work on wall brackets. 3 wall mount(s) in our database clear the S3221QS's 16.3 lb and 32-inch size with a 20% margin; small fixed or articulating brackets sold for compact TVs are the usual pick.