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Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.

Description

Lenovo 4X20Q88539 135W Slim Tip AC Power Adapter

Overview

The Lenovo 4X20Q88539 is a 135W AC power adapter using the Slim Tip connector — Lenovo's standard DC connector found across a wide range of ThinkPad and Lenovo commercial notebook lines. At 135W, it delivers enough headroom for high-performance configurations under sustained CPU and GPU load, making it the appropriate replacement or spare for workstation-class laptops that a lower-wattage brick would leave throttled. Keep one at a secondary desk or rack workstation to avoid carrying a single unit between sites.

Compatibility

Designed for Lenovo notebooks that specify a 135W Slim Tip power input. Verify your system's required wattage and connector type against your laptop's bottom label or PSREF entry before ordering — using an under-rated adapter on a 135W-class system causes CPU throttling under sustained load. This adapter is not compatible with systems requiring the rectangular USB-C/Thunderbolt charging input or the older round-barrel connector.

Installation Notes

Connect the Slim Tip DC plug to the laptop's DC-in port before connecting the AC cord to mains power. Standard IEC AC input — compatible with US 120V outlets using the included AC cord. Confirm the 4X20Q88539 part number matches the replacement specified in your system's documentation before deployment.

Specifications
Overview: SLIM 135W SLIM TIP POWER ADAPTER
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Lenovo Slim 135W Slim TIP Power Adapter - 4X20Q88539

$144.99

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