Certificates
Certification	CB CCC CECP BIS BSMI CE DERZH EAC INSM IRAM ISC KC KONCAR KVALITET Moroccan NOM-01 NOM-29 NRCAN PSB PSE SEC SII SIRIM SONCAP ST TUV UK UKCA UL
Design
Product colour	Black
Features
Purpose	Laptop
Power supply type	Indoor
Input voltage	100 - 240 V
Input frequency	50/60 Hz
Input current	1.5 A
Output power	65 W
Output voltage	20 V
Output current	3.25 A
USB Power Delivery revision	3.0
Brand compatibility	Lenovo
USB Power Delivery (USB PD)
Operational conditions
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Packaging content
Quantity per pack	1 pc(s)
Packaging data
Package width	118 mm
Package depth	95.5 mm
Package height	80 mm
Package weight	265 g
Package type	Box
Weight & dimensions
Cable length	1.7 m
Width	56 mm
Depth	28.5 mm
Height	56 mm
Weight	175 g

The Lenovo 4X21L54610 is a 65-watt power adapter for laptops, specifically designed for indoor use. It serves as a power supply for Lenovo laptops and other devices supporting the USB-C standard. The device is compatible with the USB Power Delivery (USB PD) protocol, revision 3.0, enabling flexible power delivery through the network cable. The output power is 65 W at a voltage of 20 V and a current of 3.25 A. The input parameters include a voltage of 100 to 240 V and a frequency of 50/60 Hz, making the power adapter usable worldwide. The cable length is 1.7 m, providing sufficient reach for typical work environments. The device is black and has compact dimensions of 56 mm width, 28.5 mm depth, and 56 mm height. The weight is 175 g, ensuring easy handling and portability.

Applications
This power adapter is primarily intended for operating Lenovo laptops, but can also supply other USB-C devices with a maximum power consumption of 65 W. It is suitable for office and home applications where a reliable and compact power supply is required. The universal input voltage allows use in various countries without additional adapters. The integrated USB Power Delivery function enables charging of mobile devices such as smartphones, tablets, or other USB-C-compatible devices.

Functions and Equipment in Detail
The device supports the USB Power Delivery standard, enabling intelligent power distribution. The output voltage is fixed at 20 V, suitable for most modern laptops. Power delivery occurs via a USB-C cable, which allows high data transfer rates and simultaneous power supply. The maximum output power of 65 W is sufficient to operate most notebooks. The input current is 1.5 A, ensuring stable power supply even under higher loads. The operating temperature ranges from 0 to 40 °C, allowing safe operation in normal indoor environments. The relative humidity during operation is 8 to 80 %, enabling broad usability under various climatic conditions.

Technology Explained Simply
The power adapter converts alternating current from the socket (100–240 V) into a direct current of 20 V, required for the internal power supply of the laptop. Power delivery occurs via a USB-C cable, which enables both data transmission and power supply (PoE). The USB Power Delivery function automatically detects the connected device and adjusts the power supply accordingly. The integrated circuit ensures stable and safe power delivery, even with fluctuations in input voltage. The cable length of 1.7 m provides sufficient freedom of movement, without requiring the device to be placed directly at the socket.

Compatibility and Accessories
The power adapter is specifically developed for Lenovo laptops equipped with USB-C connectors. It is also compatible with other devices supporting the USB-C standard and USB Power Delivery protocol. Use with other brands is possible, provided the power supply requirements (voltage, current, power) match. The packaging contains a single power adapter, without additional components.

Installation and Mounting
Installation is performed by simply connecting the power adapter to a socket and then connecting the USB-C cable to the laptop. No additional mounting or installation work is required. The device is immediately ready for use once connected. The cable length of 1.7 m allows flexible placement of the laptop relative to the socket.

Advantages in Operation
The power adapter offers a compact and lightweight design, easily integrating into daily use. The universal input voltage enables worldwide use. The USB Power Delivery function expands usage possibilities, as mobile devices can also be charged. The stable power supply ensures reliable laptop operation, without voltage fluctuations or power failures. The compact size and low weight facilitate transportation, especially in mobile work environments. Certifications such as CB, CE, UL, UKCA, and others confirm safety and compliance with international standards.

Certifications
The device meets numerous international safety and quality standards, including CB, CCC, CECP, BIS, BSMI, CE, DERZH, EAC, INSM, IRAM, ISC, KC, KONCAR, KVALITET, Moroccan, NOM-01, NOM-29, NRCAN, PSB, PSE, SEC, SII, SIRIM, SONCAP, ST, TUV, UK, UKCA, UL. These certifications guarantee safety, reliability, and compliance with applicable regulations in various markets.

Product Color and Design
The power adapter is black, giving it an unobtrusive and professional appearance. The compact shape and smooth surface facilitate handling and transportation. The dimensions of 56 mm width, 28.5 mm depth, and 56 mm height ensure space-saving storage.

Operating Conditions
The device is designed for operation at temperatures between 0 and 40 °C. The relative humidity during operation is 8 to 80 %, enabling broad usability in various indoor environments. The operating conditions meet the requirements for typical office and home applications.

Packaging
The packaging is a box with dimensions of 118 mm width, 95.5 mm depth, and 80 mm height.