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Black rectangular 240W laptop power adapter with 7.4mm by 5.0mm barrel connector

NShi

NShi 240W 19.5V 12.3A AC Adapter 7.4mm*5.0mm laptop replacement part

SKU CH-DTCV-JK837

240 W replacement power supply delivering 19.5 V at 12.3 A with a 7.4 mm × 5.0 mm connector for Dell Precision and Alienware laptops

  • 240W output powers demanding Dell Precision and Alienware laptops
  • 5V 12.3A delivery matches original charger specifications exactly
  • 4mm × 5.0mm centre-pin connector fits listed models without adapters
  • 100–240V auto-switching input works worldwide on any mains supply
  • Multiple safety circuits protect against over-current, over-voltage, short-circuit and over-heating

240 W 19.5 V power adapter

This 240 W AC adapter supplies 19.5 V at 12.3 A through a 7.4 mm by 5.0 mm barrel connector with a centre pin. It accepts 100-240 V input at 50-60 Hz and is built for Dell Precision mobile workstations and Alienware gaming laptops. The unit weighs approximately 450 g and measures roughly 18.5 cm by 9 cm by 3 cm.

Suits owners of listed Precision

Buyers with a Dell Precision 7520, 7720, 7730, 7740, 7750, 7760, M6400, M6600, M6700, M6800 or M6500, or an Alienware 15 R1 through R4, Alienware 17 R3 or R5, or Dell G15 5510, 5511, 5515, 5520, 5521 can use this adapter. It is not for laptops that require a different voltage, current or connector size, nor for ultraportables that use USB-C power delivery.

7.4 mm × 5.0 mm centre-pin connector

The barrel plug measures 7.4 mm outer diameter by 5.0 mm inner diameter and includes a centre pin. This exact geometry decides whether the adapter fits the DC-in jack of the target laptop. Verify the original charger’s connector dimensions and part number against the listed replacements before ordering.

Highlights

  • 240W output powers demanding Dell Precision and Alienware laptops
  • 5V 12.3A delivery matches original charger specifications exactly
  • 4mm × 5.0mm centre-pin connector fits listed models without adapters
  • 100–240V auto-switching input works worldwide on any mains supply
  • Multiple safety circuits protect against over-current, over-voltage, short-circuit and over-heating

Specifications

No published specifications for this item yet.

Questions about this item

What is the maximum continuous power this 240 W adapter can deliver before its over-heating protection activates?

The unit is rated for 240 W continuous output at 19.5 V and 12.3 A; the built-in over-heating protection will trip if that limit is exceeded.

How much heat and noise does the adapter produce when powering a workstation all day?

It has no fan, so it runs silently; the black enclosure reaches typical external temperatures for a 240 W brick under full load.

Which separate mains lead do I need to connect this adapter to a wall socket?

The adapter body has a standard IEC C6 inlet, so you must supply a C5 cordset (often called a cloverleaf cable) for your local plug type.

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