Counter-Strike 2
Valorant
Dota 2
League of LegendsUSP-S | Serum float and wear
The USP-S | Serum's float runs from 0.00 to 0.25, which covers Factory New, Minimal Wear and Field-Tested.
| Exterior | Float band | Exists for this skin | Its floats in band |
|---|---|---|---|
| Factory New | 0.00 – 0.07 | Yes | 0.00 – 0.07 |
| Minimal Wear | 0.07 – 0.15 | Yes | 0.07 – 0.15 |
| Field-Tested | 0.15 – 0.38 | Yes | 0.15 – 0.25 |
| Well-Worn | 0.38 – 0.45 | No | — |
| Battle-Scarred | 0.45 – 1.00 | No | — |
How to get the USP-S | Serum: case, odds and trade-ups
The USP-S | Serum drops from the CS:GO Weapon Case 2 with a 1.6% chance per opening, since it shares the case's 3.2% Classified odds with 1 other skin.
Per case opened
1.6%
About 1 in 63
StatTrak™ per case
0.16%
About 1 in 625
Trade-up outcome
50%
1 in 2 from a Restricted trade-up
| Case | Weekly drop pool | Chance per opening | Case price |
|---|---|---|---|
| CS:GO Weapon Case 2 | No longer drops | 1.6% · 1 in 63 | — |
Tier odds are Valve's published rates; odds per skin assume every skin in a tier is equally likely, which Valve hasn't confirmed.
Trade-up contract
10 × Restricted from The Arms Deal 2 Collection1 of 2 Classifiedat 50% each
Output float = average input × (0.25 − 0.00) + 0.00
About the USP-S | Serum
The USP-S | Serum was added in November 2013, in The Arms Deal 2 Collection. In CS2 it still uses the legacy weapon model.
“A fan favorite from Counter-Strike Source, the Silenced USP Pistol has a detachable silencer that gives shots less recoil while suppressing attention-getting noise. It has been painted in a digital pattern with metallic paints of various reflectivities over a chrome base coat.”
