Product comparison · 2 power adapters & inverters

Lenovo 4X21U95390 power adapter/inverter Indoor vs StarTech.com 140W USB-C Laptop Charger with 4ft (1.2m) Tethered USB-C Cable, GaN Power Adapter Brick for MacBook M3/M4/M5 Pro/Max, Dell Pro/Plus/Premium

21specifications compared
15differ
6identical
15known for one product only

Key differences

The Lenovo 4X21U95390 power adapter/inverter Indoor has 1.3 A more input current than the StarTech.com 140W USB-C Laptop Charger with 4ft (1.2m) Tethered USB-C Cable, GaN Power Adapter Brick for MacBook M3/M4/M5 Pro/Max, Dell Pro/Plus/Premium (3.5 A vs 2.2 A). The Lenovo 4X21U95390 power adapter/inverter Indoor has 125 W more output power than the StarTech.com 140W USB-C Laptop Charger with 4ft (1.2m) Tethered USB-C Cable, GaN Power Adapter Brick for MacBook M3/M4/M5 Pro/Max, Dell Pro/Plus/Premium (265 W vs 140 W). The Lenovo 4X21U95390 power adapter/inverter Indoor has 11.5 A more output current than the StarTech.com 140W USB-C Laptop Charger with 4ft (1.2m) Tethered USB-C Cable, GaN Power Adapter Brick for MacBook M3/M4/M5 Pro/Max, Dell Pro/Plus/Premium (16.5 A vs 5 A). Purpose: PC on the Lenovo 4X21U95390 power adapter/inverter Indoor, Laptop on the StarTech.com 140W USB-C Laptop Charger with 4ft (1.2m) Tethered USB-C Cable, GaN Power Adapter Brick for MacBook M3/M4/M5 Pro/Max, Dell Pro/Plus/Premium. Output voltage: 20 V on the Lenovo 4X21U95390 power adapter/inverter Indoor, 5 - 28 V on the StarTech.com 140W USB-C Laptop Charger with 4ft (1.2m) Tethered USB-C Cable, GaN Power Adapter Brick for MacBook M3/M4/M5 Pro/Max, Dell Pro/Plus/Premium.

Purpose
- 4X21U95390 power adapter/inverter Indoor:PC
- 140W USB-C Laptop Charger with 4ft (1.2m) Tethered USB-C Cable, GaN Power Adapter Brick for MacBook M3/M4/M5 Pro/Max, Dell Pro/Plus/Premium:Laptop
Input current
- 4X21U95390 power adapter/inverter Indoor:3.5 A
- 140W USB-C Laptop Charger with 4ft (1.2m) Tethered USB-C Cable, GaN Power Adapter Brick for MacBook M3/M4/M5 Pro/Max, Dell Pro/Plus/Premium:2.2 A
Output power
- 4X21U95390 power adapter/inverter Indoor:265 W
- 140W USB-C Laptop Charger with 4ft (1.2m) Tethered USB-C Cable, GaN Power Adapter Brick for MacBook M3/M4/M5 Pro/Max, Dell Pro/Plus/Premium:140 W
Output voltage
- 4X21U95390 power adapter/inverter Indoor:20 V
- 140W USB-C Laptop Charger with 4ft (1.2m) Tethered USB-C Cable, GaN Power Adapter Brick for MacBook M3/M4/M5 Pro/Max, Dell Pro/Plus/Premium:5 - 28 V
Output current
- 4X21U95390 power adapter/inverter Indoor:16.5 A
- 140W USB-C Laptop Charger with 4ft (1.2m) Tethered USB-C Cable, GaN Power Adapter Brick for MacBook M3/M4/M5 Pro/Max, Dell Pro/Plus/Premium:5 A
Brand compatibility
- 4X21U95390 power adapter/inverter Indoor:Lenovo
- 140W USB-C Laptop Charger with 4ft (1.2m) Tethered USB-C Cable, GaN Power Adapter Brick for MacBook M3/M4/M5 Pro/Max, Dell Pro/Plus/Premium:Any brand
Width
- 4X21U95390 power adapter/inverter Indoor:209 mm
- 140W USB-C Laptop Charger with 4ft (1.2m) Tethered USB-C Cable, GaN Power Adapter Brick for MacBook M3/M4/M5 Pro/Max, Dell Pro/Plus/Premium:50.4 mm
Depth
- 4X21U95390 power adapter/inverter Indoor:80 mm
- 140W USB-C Laptop Charger with 4ft (1.2m) Tethered USB-C Cable, GaN Power Adapter Brick for MacBook M3/M4/M5 Pro/Max, Dell Pro/Plus/Premium:132.6 mm

Side by side

Differences highlightedShow differences only

Comparison of 4X21U95390, 1140LE-USB-C-CHARGER
36 specifications	A Lenovo 4X21U95390 power adapter/inverter Indoor Model 4X21U95390 View product	B StarTech.com 140W USB-C Laptop Charger with 4ft (1.2m) Tethered USB-C Cable, GaN Power Adapter Brick for MacBook M3/M4/M5 Pro/Max, Dell Pro/Plus/Premium Model 1140LE-USB-C-CHARGER View product
Features7 differ
PurposeDiffers	PC	Laptop
Input currentDiffers	3.5 A	2.2 A
Output powerDiffers	265 W	140 W
Output voltageDiffers	20 V	5 - 28 V
Output currentDiffers	16.5 A	5 A
USB Power Delivery revisionKnown for one	Unknown — not stated by the source	3.1
Power protection featuresKnown for one	Unknown — not stated by the source	Over voltage, Over current, Overheating
Brand compatibilityDiffers	Lenovo	Any brand
CompatibilityDiffers	ThinkPad	MacBook M3/M4/M5 Pro/Max, Dell Pro/Plus/Premium
Performanceidentical
USB connectivityKnown for one	Unknown — not stated by the source	Yes
USB connector typeKnown for one	Unknown — not stated by the source	USB Type-C
Operational conditionsidentical
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-20 - 60 °C
Operating relative humidity (H-H)Known for one	8 - 80%	Unknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	CE, Federal Communications Commission (FCC), PSE
CertificationKnown for one	UL/CSA/IECEE/CB IEC 62368-1/CE EMC/DOE,CEC/FCC and ICES/PSE/NRCS(LOA)/SABS(COC)/SABS/BIS/BSMI/CCC/EAC/IAC/KEBS/KUCAS/NOM/Nrcan/PSB/RCM/Australia safety/SEC/Serbia/SM DOC/SONCAP/UA TR Mark CoC/DOC (Safety+EMC+RoHS)	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	209 mm	50.4 mm
DepthDiffers	80 mm	132.6 mm
HeightDiffers	30 mm	31.6 mm
WeightDiffers	780 g	338 g
Cable lengthKnown for one	1.8 m	Unknown — not stated by the source
Packaging data4 differ
Package widthDiffers	260 mm	180 mm
Package depthDiffers	160 mm	122 mm
Package heightDiffers	80 mm	59 mm
Package weightDiffers	950 g	600 g
Package typeKnown for one	Box	Unknown — not stated by the source
Packaging contentidentical
Included power plug typesKnown for one	Unknown — not stated by the source	US
Logistics dataidentical
Master (outer) case widthKnown for one	Unknown — not stated by the source	380 mm
Master (outer) case lengthKnown for one	Unknown — not stated by the source	315 mm
Master (outer) case heightKnown for one	Unknown — not stated by the source	315 mm
Products per master (outer) caseKnown for one	Unknown — not stated by the source	20 pc(s)

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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