Reduction Set 5.5 x 2.1 - Female to 28 Connector Types

Product detailed description

A set of 28 reducers for DC power connectors turns a single power supply into an all-use adapter. The input is a 5.5 × 2.1 mm coaxial socket (female), the most common size for standard mains adapters and lab power supplies, and the output has 28 different tips – from large laptop ones 7.9 × 5.5 mm and 7.4 × 5.0 mm, through classic coaxial connectors 5.5 × 2.5 and 5.5 × 2.1 mm, down to small 2.0 × 0.5 mm and audio jacks 3.5 and 2.5 mm. Use it for bringing electronics back to life, laptops, routers, switches, LED strips, gauging tools, and older gear where the original power supply is lost.

Specifications:

• Input (female): coaxial DC connector 5.5 × 2.1 mm (same for all pieces)
• Number of reducers: 28 pcs
• Body material: ABS, metal contacts
• Operating voltage: low voltage up to 30 V DC (typically 5 / 12 / 19–20 / 24 V)
• Current load: set by the connector type – for the smallest widths (2.0 × 0.5 or 2.35 × 0.7 mm), expect a much lower current than for large laptop ones
• Polarity: 1:1 pass-through, does not change (standardly positive on the centre pin)
• Weight: about 150 g including packaging
• Usage: laptops, all-use power adapters, power banks with DC output, routers, switches, LED lighting, lab power supplies, audio and gauging gear

List of tips (male):

• 7.9 × 5.5 mm, yellow – Lenovo, IBM ThinkPad
• 7.4 × 5.0 mm with middle pin, black – Dell, HP Compaq Pavilion
• Dell, three-pin
• 6.3 × 3.0 mm, fork contact, green – Toshiba, Lenovo
• 6.0 × 4.3 mm with middle pin, black – Samsung, Fujitsu, Sony
• 5.5 × 2.5 mm, white – Lenovo, ASUS, Acer, MSI, BenQ, Toshiba, IBM, Gateway
• 5.5 × 2.5 mm, black
• 5.5 × 2.5 mm, fork contact, black – ASUS, Toshiba, HP, MSI, IBM, Lenovo
• 5.5 × 2.1 mm, Blue – Acer, Toshiba, HP
• 5.5 × 2.1 mm, Pin Contact, Black – HP, Sega (2×)
• 5.5 × 1.9 mm, Black – ASUS
• 5.5 × 1.7 mm, Fork Contact, Yellow – Acer, Lenovo, ASUS, BenQ, Toshiba, Hasee
• 5.5 × 1.5 mm, Black
• 5.0 × 2.5 mm, Black
• 5.0 × 2.1 mm, Black
• 5.0 × 1.1 mm with centre pin, Yellow
• 4.8 × 1.7 mm, fork contact, yellow – HP Pavilion, Sony, ASUS Eee, NEC, Delta, Compaq
• 4.8 × 1.7 mm, "bullet" type, black – HP, ASUS, Lenovo, NEC, Delta, Compaq
• 4.0 × 1.7 mm, fork contact, yellow – ASUS, BenQ, Acer, Sony PSP, HP mini, GPS navigation
• 3.5 × 1.35 mm, red – Fujitsu, Dell, Sharp
• 3.5 × 1.1 mm, black
• 3.0 × 1.1 mm, black – Samsung
• 2.5 × 0.7 mm, fork contact, yellow – Dell, Samsung, Sharp, Android tablets
• 2.35 × 0.7 mm, fork contact, yellow
• 2.0 × 0.5 mm, fork contact, black
• 3.5 mm mono jack
• 2.5 mm mono jack

Package contents:

• 28× DC 5.5 × 2.1 mm female to various male connector adapters

Important note:

• Always verify the voltage and polarity of the powered device before connecting. The adapters do not change or control the polarity – reverse polarity may result in damage to the device.
• Adapters are not intended for 230 V mains voltage, only for safe low DC voltage.
• Dimensional values are given as outer × inner pin diameter.
• The listed laptop brands serve only as a guide for selecting the connector size; always verify compatibility with your specific model.

Note:

• This product is not a standalone functional unit and may require professional installation.
• Product images are for illustrative purposes only and may sometimes differ from the actual appearance of the item. However, this does not change their basic properties.