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Total Micro 170W AC adapter with slim tip connector

Total Micro Technologies

Total Micro 4X20E50574-TM 170W Slim Tip AC Adapter

SKU CH-PMM8-Y7A36

Replacement 170 W slim-tip adapter for compatible Lenovo ThinkPad models including P1, P51, P52, P71, T570, X1 Extreme and X270

  • 170 W output powers demanding ThinkPad models
  • Slim-tip connector fits Yoga 260, P1, X1 Extreme and more
  • 120 V / 230 V input works worldwide
  • 20 V DC at 8.50 A matches OEM 43N0372 spec

Power for select ThinkPad models

This 170 W AC adapter uses a slim-tip connector to supply 20 V at 8.50 A to compatible Lenovo ThinkPad systems. It accepts 120 V or 230 V mains input for use in the United States, Canada and Mexico. The unit replaces the original 43N0372 adapter and carries a lifetime limited warranty.

Input and output constraints

The adapter delivers a fixed 20 V DC output, so it cannot charge devices that require a different voltage or a higher current than 8.50 A. Its slim-tip plug fits only the listed ThinkPad models and will not connect to laptops that use a rectangular or USB-C power input. The 120 V and 230 V AC range covers North American mains but does not extend to other regional voltages.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $54.99
Pricier than about 85% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameTotal Micro

Questions about this item

Should I choose the 170 W 20 V 8.50 A adapter or a lower-wattage model?

Select the 170 W unit when your ThinkPad requires 20 V DC at 8.50 A; lower-wattage adapters cannot deliver that current.

What does the 170 W rating mean when the adapter is connected to my laptop?

It confirms the adapter can supply up to 20 V DC at 8.50 A continuously, matching the power draw of supported ThinkPad models.

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