Import 90w Universal Adapter — Buy in Bulk from Supplier in China

The 90W universal adapter from Powerfirst Industrail Co., Ltd is an automatic-switching notebook power supply with active power factor correction and eight interchangeable DC connector tips. Output voltage is set automatically according to the attached tip, with an reset to 15V after current interruption to reduce the risk of over-voltage damage if a laptop is reconnected without the correct tip. The eight connector sizes are 6.3 by 3.0mm, 5.5 by 2.5mm, 6.5 by 4.4mm with 1.4mm pin, 4.8 by 1.7mm, a second 5.5 by 2.5mm, 5.0 by 3.0mm with 1.0mm pin, 5.5 by 2.1mm, and a second 6.5 by 4.4mm with 1.4mm pin. Maximum power output is 90W, placing it in the standard range for mainstream portable computers.

Active PFC is integrated, which improves input-current harmonic distortion and helps the unit meet European Union and North American regulatory limits for mains-connected equipment. The auto-reset function to 15V is a safety-oriented design choice that forces the adapter to the lowest possible output after any power event, requiring the correct tip to re-establish the higher voltage needed by specific laptops. Housing and internal construction details are not stated, though a typical 90W active-PFC adapter of this generation uses a two-switch forward or flyback topology with synchronous rectification on the secondary side to achieve the efficiency levels demanded by modern energy codes.

Target buyers include OEM accessory distributors, corporate IT resellers, educational procurement offices and retail chains that need a single stock-keeping unit to cover multiple laptop brands. The eight-tip configuration reduces the number of separate adapters a buyer must inventory. Trade specifics such as exact MOQ, unit price, packaging configuration, lead time and Incoterms are not provided in the source and must be negotiated directly with Powerfirst Industrail Co., Ltd. Buyers should also confirm whether the adapter is supplied with a power cord appropriate for their destination country or if a cord-less brick format is used.

Powerfirst Industrail Co., Ltd is registered at 4F, No.228 Hekan North Road, Hekan Village, Bantian Buji Town, Longgang District, Shenzhen 518028, China. The supplier is classified as imported tier with a harbor trust designation, which represents a foundational verification level. The response rate is shown as 0.00 percent and average response hours as zero, indicating that the account has not engaged with recent buyer inquiries or that messaging data has not been recorded.

The listing emphasises technical product features rather than company history, factory scale, employee count or client roster. No information is provided about year of establishment, production capacity, quality-system certifications such as ISO 9001, or named OEM customers. Buyers should therefore treat the initial engagement as a qualification exercise, requesting a company profile, factory audit possibilities and sample evaluation before committing to volume procurement. The product line appears focused on consumer and small-business power accessories rather than industrial or medical-grade supplies.