Product comparison · 2 power adapters & inverters

Lenovo 4X21L38732 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

20specifications compared
15differ
5identical
15known for one product only

Key differences

The Lenovo 4X21L38732 power adapter/inverter Indoor has 0.3 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 (2.5 A vs 2.2 A). 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 has 5 W more output power than the Lenovo 4X21L38732 power adapter/inverter Indoor (140 W vs 135 W). The Lenovo 4X21L38732 power adapter/inverter Indoor has 1.75 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 (6.75 A vs 5 A). Purpose: PC on the Lenovo 4X21L38732 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. Input frequency: 50/60 Hz on the Lenovo 4X21L38732 power adapter/inverter Indoor, 50 - 60 Hz 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
- 4X21L38732 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 frequency
- 4X21L38732 power adapter/inverter Indoor:50/60 Hz
- 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 - 60 Hz
Input current
- 4X21L38732 power adapter/inverter Indoor:2.5 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
- 4X21L38732 power adapter/inverter Indoor:135 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
- 4X21L38732 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
- 4X21L38732 power adapter/inverter Indoor:6.75 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
Width
- 4X21L38732 power adapter/inverter Indoor:126 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
- 4X21L38732 power adapter/inverter Indoor:77 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 4X21L38732, 1140LE-USB-C-CHARGER
35 specifications	A Lenovo 4X21L38732 power adapter/inverter Indoor Model 4X21L38732 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 frequencyDiffers	50/60 Hz	50 - 60 Hz
Input currentDiffers	2.5 A	2.2 A
Output powerDiffers	135 W	140 W
Output voltageDiffers	20 V	5 - 28 V
Output currentDiffers	6.75 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 compatibilityKnown for one	Unknown — not stated by the source	Any brand
CompatibilityDiffers	CCC/BSMI/CB/CE/FCC Morocco/SEC/CU ROHS NOM/PSB/PSE/NRCS SII/TUV-GS/Ukraine/UL/RCM/ISC SONCAP/KEBS/Serbia Uzbekistan/TUV-S/INSM Kucas/CECP/AU MEPS KCC/NRCan(VI) NOM-029/CU/BIS	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
Weight & dimensions4 differ
WidthDiffers	126 mm	50.4 mm
DepthDiffers	77 mm	132.6 mm
HeightDiffers	22 mm	31.6 mm
WeightDiffers	550 g	338 g
Cable lengthKnown for one	1 m	Unknown — not stated by the source
Packaging data4 differ
Package widthDiffers	264 mm	180 mm
Package depthDiffers	110 mm	122 mm
Package heightDiffers	53 mm	59 mm
Package weightDiffers	700 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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