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Black rectangular 90 W power adapter with 4.5 by 3.0 mm small-pin connector and detachable power cord

DELL

DELL 90 W AC adapter 4.5 × 3.0 mm small pin LA90PM111

SKU CH-4WB0-YKT5J

90 W AC adapter with 4.5 × 3.0 mm small-pin connector and 3 ft power cord for compatible Dell Inspiron, Vostro and XPS models

  • Battery TypeLithium-Ion
  • Delivers 90 W through a 4.5 × 3.0 mm small-pin connector
  • Accepts 100-240 V 50-60 Hz input for worldwide use
  • Outputs 19.5 V at 4.62 A for stable charging
  • Includes a 3 ft power cord ready to plug in
  • Fits Inspiron, Vostro and XPS All-In-One and laptop models listed

Dell 90 W 4.5 mm small-pin adapter

This original Dell 90 W AC adapter delivers 19.5 V at 4.62 A through a 4.5 × 3.0 mm centre-pin connector. It is built for owners of listed Inspiron, Vostro and XPS models who need a direct replacement for part numbers such as LA90PM111 or PA-1900-32D. The package includes the adapter and a three-foot mains cord.

Input range and connector constraint

The unit accepts 100-240 V at 50-60 Hz, so it works on mains supplies worldwide without a voltage switch. The barrel tip is 4.5 mm outer diameter with a 3.0 mm inner diameter and central pin; it will not fit the larger 7.4 × 5.0 mm connector used on some other Dell systems. Buyers must verify the exact plug dimensions before ordering.

Connector tip diameter decides fit

The single specification that determines compatibility is the 4.5 × 3.0 mm centre-pin connector. If the laptop requires the 7.4 × 5.0 mm big-pin tip this adapter cannot be used, regardless of matching voltage or wattage. Check the device service tag or existing charger label to confirm the required tip size.

Highlights

  • Delivers 90 W through a 4.5 × 3.0 mm small-pin connector
  • Accepts 100-240 V 50-60 Hz input for worldwide use
  • Outputs 19.5 V at 4.62 A for stable charging
  • Includes a 3 ft power cord ready to plug in
  • Fits Inspiron, Vostro and XPS All-In-One and laptop models listed

Specifications

Battery TypeLithium-Ion

Questions about this item

Which Dell models does the 4.5 × 3.0 mm small-pin 90 W adapter fit?

It matches Inspiron 11 3147 3148, Inspiron 13 7347 7348, Inspiron 14 5458 7437, Inspiron 15 5551 5555 5558 7558, Inspiron 17 5755 5758 5759, Inspiron 24 5459 All In One, XPS 11 9P33, XPS 12 9Q23 9Q33, XPS 13 9333 9343 L321X L322X, XPS 18 1810 1820 All In One and Vostro 15 3558.

What does the 90 W output deliver to a compatible laptop?

The adapter supplies 19.5 V at 4.62 A, providing up to 90 W of continuous power for charging and operation.

What voltage range does the input accept and what does that mean for travel?

The input accepts 100-240 V at 50-60 Hz, so it works on mains supplies worldwide without a voltage converter.

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