StatTrak™ USP-S | Serum (Factory New)

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StatTrak™ USP-S | Serum (Factory New)

RegularStatTrak™Souvenir

Type Pistol

Rarity Classified

Category StatTrak™

Best offer

Factory New 0.054723352193832

$66.47 -19%

Steam: $81.92

Factory New40 on sale From $66.47

Minimal Wear80 on sale From $51.68

Field-Tested38 on sale From $55.93

40 offers

0.054723352193832

100%
Viggo (Holo)
100%
Boris (Holo)
100%
Max (Holo)

Viggo (Holo)
100%
$1.75
Boris (Holo)
100%
$1.48
Max (Holo)
100%
$0.85
Total: $4.08

Instant Your purchase will be delivered instantly.

$66.47

0.034653726965189

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$66.53

0.058788526803255

36%
xertioN (Holo) | Budapest 2025
33%
Brollan (Holo) | Budapest 2025

xertioN (Holo) | Budapest 2025
36%
$0.15
Brollan (Holo) | Budapest 2025
33%
$0.15
Total: $0.30

Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.

$69.69

0.030208133161068

Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.

$69.71

0.066538751125336

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$70.43

0.036231074482203

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$70.43

0.027219628915191

Stitch-Loaded

Stitch-Loaded
$0.07

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$71.66

0.022006135433912

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$71.95

0.058396875858307

100%
karrigan (Holo) | Austin 2025

karrigan (Holo) | Austin 2025
100%
$1.48

Instant Your purchase will be delivered instantly.

$72.07

0.023039130493999

100%
ENCE (Foil) | Berlin 2019
100%
ENCE (Foil) | Berlin 2019
100%
ENCE (Foil) | Berlin 2019
100%
FaZe Clan (Embroidered) | Budapest 2025

ENCE (Foil) | Berlin 2019
100%
$3.92
ENCE (Foil) | Berlin 2019
100%
$3.92
ENCE (Foil) | Berlin 2019
100%
$3.92
FaZe Clan (Embroidered) | Budapest 2025
100%
$0.01
Total: $11.77

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$72.08

0.023831663653255

100%
Vigilance (Holo)
100%
Nice Shot
100%
Chicken Lover

Vigilance (Holo)
100%
$1.42
Nice Shot
100%
$1.24
Chicken Lover
100%
$0.73
Total: $3.39

Instant Your purchase will be delivered instantly.

$73.73

0.058008410036564

100%
Avangar (Holo) | Katowice 2019

Avangar (Holo) | Katowice 2019
100%
$1.88

Instant Your purchase will be delivered instantly.

$73.73

0.067564845085144

100%
OG | 2020 RMR
100%
OG | 2020 RMR
100%
OG | 2020 RMR

OG | 2020 RMR
100%
$0.01
OG | 2020 RMR
100%
$0.01
OG | 2020 RMR
100%
$0.01
Total: $0.03

Instant Your purchase will be delivered instantly.

$73.73

0.067527785897255

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$73.73

0.052892439067364

100%
MOUZ (Holo) | Austin 2025
100%
Twistzz (Foil) | Austin 2025
100%
mezii (Foil) | Austin 2025
100%
magixx (Foil) | Austin 2025

MOUZ (Holo) | Austin 2025
100%
$1.19
Twistzz (Foil) | Austin 2025
100%
$0.17
mezii (Foil) | Austin 2025
100%
$0.02
magixx (Foil) | Austin 2025
100%
$0.06
Total: $1.44

Instant Your purchase will be delivered instantly.

$73.73

0.065017439424992

100%
Baited (Holo)

Baited (Holo)
100%
$0.74

Instant Your purchase will be delivered instantly.

$73.73

0.066717177629471

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$73.73

0.049677897244692

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$73.73

0.042620271444321

100%
Astralis (Glitter) | Antwerp 2022
100%
Astralis (Glitter) | Antwerp 2022
100%
Astralis (Glitter) | Antwerp 2022
100%
Astralis (Glitter) | Antwerp 2022

Astralis (Glitter) | Antwerp 2022
100%
$0.45
Astralis (Glitter) | Antwerp 2022
100%
$0.45
Astralis (Glitter) | Antwerp 2022
100%
$0.45
Astralis (Glitter) | Antwerp 2022
100%
$0.45
Total: $1.80

Instant Your purchase will be delivered instantly.

$76.85

0.064631506800652

100%
Ouchie (Foil)
Glamour Shot

Ouchie (Foil)
100%
$2.09
Glamour Shot
$0.52
Total: $2.61

Instant Your purchase will be delivered instantly.

$76.85

0.054941687732935

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$76.85

0.053654924035072

Instant Your purchase will be delivered instantly.

$76.85

0.054070889949799

Instant Your purchase will be delivered instantly.

$76.85

0.069233886897564

Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.

$78.93

0.022040201351047

Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.

$78.93

0.027305159717798

100%
Rising Skull
100%
Don't Worry (Foil)
100%
Aces High (Holo)

Rising Skull
100%
$1
Don't Worry (Foil)
100%
$0.73
Aces High (Holo)
100%
$2.76
Total: $4.49

Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.

$78.98

0.025613913312554

100%
Vitality (Gold) | Paris 2023
100%
Vitality (Gold) | Paris 2023
100%
mezii (Gold) | Budapest 2025
100%
Vitality (Gold) | Paris 2023

Vitality (Gold) | Paris 2023
100%
$1.42
Vitality (Gold) | Paris 2023
100%
$1.42
mezii (Gold) | Budapest 2025
100%
$1.35
Vitality (Gold) | Paris 2023
100%
$1.42
Total: $5.61

Instant Your purchase will be delivered instantly.

$80.71

0.061641573905945

Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.

$82.46

0.058325942605734

Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.

$82.46

0.069526180624962

100%
Gambit Gaming (Foil) | MLG Columbus 2016

Gambit Gaming (Foil) | MLG Columbus 2016
100%
$10.92

Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.

$87.71

0.026783753186464

Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.

$87.80

0.034882415086031

100%
Lambda (Holo)

Lambda (Holo)
100%
$2.81

Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.

$92.75

0.041057456284761

100%
Rage

Rage
100%
$2.97

Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.

$97.63

0.046248313039541

100%
Renegades | Cologne 2015
100%
Renegades | Cologne 2015
100%
Renegades | Cologne 2015
100%
Renegades | Cologne 2015

Renegades | Cologne 2015
100%
$1.94
Renegades | Cologne 2015
100%
$1.94
Renegades | Cologne 2015
100%
$1.94
Renegades | Cologne 2015
100%
$1.94
Total: $7.76

Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.

$98.90

0.033219758421183

100%
G2 Esports (Foil) | MLG Columbus 2016
Baby's AK

G2 Esports (Foil) | MLG Columbus 2016
100%
$47.12
Baby's AK
$0.15
Total: $47.27

Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.

$107.90

0.024332657456398

Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.

$116.53

0.048267222940922

Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.

$136.75

0.000962213089224

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$138.89

0.031579300761223

100%
Titan | Cologne 2014
100%
Assassin (Holo)
100%
Assassin (Holo)
100%
Assassin (Holo)

Titan | Cologne 2014
100%
$53.32
Assassin (Holo)
100%
$1.57
Assassin (Holo)
100%
$1.57
Assassin (Holo)
100%
$1.57
Total: $58.03

Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.

$161.85

0.029558623209596

100%
ESL Skull (Foil) | Katowice 2014
100%
Legendary (Foil)
100%
Legendary (Foil)
100%
Legendary (Foil)

ESL Skull (Foil) | Katowice 2014
100%
$390.58
Legendary (Foil)
100%
$1.41
Legendary (Foil)
100%
$1.41
Legendary (Foil)
100%
$1.41
Total: $394.81

Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.

$258.97

StatTrak™ USP-S | Serum (Factory New)

What the StatTrak™ counter does

The StatTrak™ USP-S | Serum (Factory New, FN) is the StatTrak™ copy of this skin — the same Classified finish, the same look, with a kill counter built into the model. Serum is a Valve design that leans hard into a single striking red. Factory New is the cleanest grade this skin comes in and the one buyers pay the most for, covering the 0.00–0.07 band of the float scale.

What StatTrak™ changes about the price of the USP-S | Serum

Every confirmed kill with this weapon adds one to the number printed on the model. The count lives on the item rather than the account, which is why it survives trades and sales intact — and why it can never be wound back down. A StatTrak™ Swap Tool moves a count between two StatTrak™ items of the same type, which is as close to a reset as the game allows.

Where a StatTrak™ copy comes from

Expect to pay more than for the plain version: StatTrak™ copies are much thinner on the ground at any given finish and exterior. The premium tracks the skin itself, not the counter — buyers pay for the finish and the float, and a big number adds little.

FAQ

Serum belongs to The Arms Deal 2 Collection and drops from the CS:GO Weapon Case 2, released with The Arms Deal 2 update on November 8, 2013. StatTrak™ is settled at the drop: a copy either leaves the case with a counter or never has one, and it cannot be added afterwards.

Can the StatTrak counter on the USP-S | Serum be reset?

No. The count only moves one way and stays with the item through every trade and sale. A StatTrak™ Swap Tool moves a count between two StatTrak™ items of the same type, which is as close to a reset as the game allows. It still cannot lower the number.

Does StatTrak change how the USP-S | Serum looks?

No, apart from the counter on the model. The finish, the pattern and the float range are identical to the plain version, so at the same exterior the two look the same in hand.