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Black rectangular 45W USB-C power adapter with detachable cable

NShi

NShi 45W USB-C AC Adapter 4X20E75131 Black

SKU CH-FGX3-E5YTN

45 W USB-C adapter replaces multiple Lenovo OEM chargers for ThinkPad and Yoga models with selectable output up to 20 V 2.25 A

  • ColorBlack
  • TypeAC Adapter
  • CompatibilityLENOVO C213SA, C223NA, C302CA, C425TA, C434TA, C523NA, MIIX
  • AC Adapter Voltage5V 2A, 12V 2A, 14.5V 2A, 15V 3A, 20V 2.25A
  • AC Adapter Output Power45W
  • 45W output powers compatible Lenovo laptops and tablets
  • USB-C connector fits multiple ThinkPad and Yoga models
  • Multi-voltage design delivers 5V, 12V, 14.5V, 15V and 20V as required
  • Replaces 15 OEM part numbers for direct substitution
  • UL, CE, FCC and RoHS certified for electrical safety

What it is and who it fits

This 45 W USB-C AC adapter replaces Lenovo OEM part 4X20E75131 and the listed alternates. It powers ThinkPad T470, T470S, T570, X1 Carbon 5th Gen, X1 Tablet 2nd Gen, X1 Yoga 2nd Gen, X270, Yoga 370, Miix 720 and several Chromebook models including C213SA and C434TA. Buyers who need a barrel-tip charger or a higher-wattage supply for docking stations will not find those here.

Thermals noise and power draw

The unit delivers five fixed voltage rails: 5 V at 2 A, 12 V at 2 A, 14.5 V at 2 A, 15 V at 3 A and 20 V at 2.25 A. Total output is capped at 45 W. It carries UL, CE, FCC and RoHS certifications, indicating tested circuit protection and stable current under normal office loads. No fan is present, so operation is silent.

Replaces and when to upgrade

This adapter directly substitutes the original charger shipped with the compatible laptops. The jump is worthwhile when the factory brick is lost, the cable is frayed or the USB-C port has become intermittent. It does not add faster charging beyond the 45 W limit, so users whose devices negotiate higher power over USB-C PD will not see reduced charge times.

Highlights

  • 45W output powers compatible Lenovo laptops and tablets
  • USB-C connector fits multiple ThinkPad and Yoga models
  • Multi-voltage design delivers 5V, 12V, 14.5V, 15V and 20V as required
  • Replaces 15 OEM part numbers for direct substitution
  • UL, CE, FCC and RoHS certified for electrical safety

Specifications

Model4X20E75131, 4X20M26252, 4X20M26256, 5A10K34713, 5A10K34723, ADLX45UDCU2A, ADLX45ULCU2A, ADLX45YCC3A, GX20M33579, SA10E75811, SA10E75820, 00HM633, 00HM642, 00HM663, 00HM664
ColorBlack
TypeAC Adapter
CompatibilityLENOVO C213SA, C223NA, C302CA, C425TA, C434TA, C523NA, MIIX 720, MIIX 720-12IKB 80VV, T470, T470S, T570, THINKPAD E570PM, THINKPAD T470, THINKPAD T470S, THINKPAD T570, THINKPAD X1 CARBON 5TH GEN, THINKPAD X1 TABLET 2ND GEN, THINKPAD X1 YOGA 2ND GEN, THINKPAD X270, THINKPAD YOGA 370, X1 CARBON 5TH GEN, X1 TABLET 2ND GEN, X1 YOGA 2ND GEN, YOGA 5, YOGA 720-13IKB 80X6, YOGA 910-13IKB
AC Adapter Voltage5V 2A, 12V 2A, 14.5V 2A, 15V 3A, 20V 2.25A
AC Adapter Output Power45W

Questions about this item

How do I connect the 4X20E75131 adapter to my ThinkPad T470, and what step do people often miss?

Plug the USB-C connector firmly into the laptop's charging port until it clicks; the step often missed is verifying the LED on the plug lights up, confirming the 20V 2.25A handshake is active.

Which part of this 45W USB-C adapter will need replacement first under normal use?

The detachable AC cord and the USB-C cable see the most flexing; inspect them periodically for fraying near the strain reliefs and replace either cable if insulation damage appears.

What thermal or power limit appears first when this adapter runs at full 45W load for extended periods?

The 20V 2.25A rail hits its current ceiling at 45W; sustained maximum output will trigger the internal over-temperature protection, causing the adapter to throttle until it cools.

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