has anyone tried to connect them to each other to extend the length?

I think so, and it didn't work. Its junk from China, don't buy it. I went to Bestbuy to get something else not long after and on a whim checked to see if they had something like this (I needed 12 feet or so) and...right there in a back aisle for about 20 or 25 bucks was the 1 piece I needed work perfectly from Bestbuy. I bought two of these cheap on amazon...and got a piece of junk from China that the computer could "not recognize" no matter how many ways I tried it. Go to bestbuy instead and buy a reputable brand...worked for me.

your usb extension wire has a red, yellow, green and black wire inside which one is positive and which one is negative

USB wires are generally universal with the following color reference: The red wire is a positive power wire with 5 volts of DC power. The black wire is the ground wire (similar to most all electronic devices). The white wire is a "positive" data wire. The green wire is a "negative" data wire. Since the wire you have has a yellow instead of white, I would expect it to be the positive.

does it come with the plug in part, to plug the cord to the wall? thanks

No it's like an extension cord for electricity but for usb.

Does this item provide data transfer and if so what speed?

It's a simple cord I simple USB cord and I transferred data I have no idea what speed it went except to go at the speed of my specific digital items such as my phone speed or my computer speed. It is a relatively inexpensive cord so if you're looking for something high tech I wouldn't get this one necessarily but I think it could work for average everyday use.

Costyle Usb Extension Cable White 2 Pack 2 0 6ft

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Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Plug in, power up, and extend your tech lifestyle effortlessly!

SPEED MEETS RELIABILITY - USB 2.0 standard delivers up to 480 Mbps for fast data sync and charging.
TANGLE FREE DURABLE DESIGN - Premium PVC jacket ensures flexibility and longevity without frustrating knots.
EXTEND YOUR WORKSPACE FREEDOM - Generous 6ft/2m length lets your devices roam without limits.
PROTECT PRESERVE YOUR PORTS - Use extension cables to shield original USB ports from wear and tear.
SLEEK WHITE WITH A TOUCH OF LUXURY - Gold-plated connectors add a stylish, high-end finish to your tech setup.

The Costyle USB Extension Cable 2-Pack offers 6ft (2m) USB 2.0 Type A male-to-female extension cords with gold-plated connectors for enhanced durability and conductivity. Designed to protect your device ports and extend connectivity, these tangle-free, white PVC cables support data transfer speeds up to 480 Mbps, making them ideal for a wide range of USB-enabled devices in professional and home setups.

Specifications

ASIN	B01KM05UNO
Best Sellers Rank	#256 in USB Cables
Brand	Costyle
Brand Name	Costyle
Cable Type	USB
Color	White
Compatible Devices	Personal Computer, Tablet, Smartphone, Monitor, USB Flash Drive, Hard Drive, USB Wall Charger,Keyboard, Mouse, Printer, Security Camera,Webcam, Compatible Devices Personal Computer, Tablet, Smartphone, Monitor, USB Flash Drive, Hard Drive, USB Wall Charger,Keyboard, Mouse, Printer, Security Camera,Webcam, See more
Compatible Phone Models	Compatible with smartphones, specific models not listed
Connectivity Technology	USB
Connector Gender	Male-to-Female
Connector Type	USB Type A
Customer Package Type	Standard Packaging
Customer Reviews	4.7 out of 5 stars 5,746 Reviews
Data Transfer Rate	0.48 Gigabits Per Second
Frequency	480 MHz
Indoor Outdoor Usage	Indoor, Outdoor
Item Shape	Round
Item Weight	0.64 Grams
Manufacturer	Costyle
Maximum Voltage	5 Volts (DC)
Model	8541682764
Model Name	8541682764
Number of Items	2
Number of Pins	4
Other Special Features of the Product	durable
Outer Material	Polyvinyl Chloride (PVC)
Part Number	LYSB01KM05UNO-CMPTRACCS
Recommended Uses For Product	Extension for USB Charger Cable, USB Keyboard Mouse Flash Drive Hard Drive Printer Camera
Special Feature	durable
UPC	600978568290
Unit Count	12 Feet

Reviews

G**S

8.03.2026

P**X

27.12.2023

J**S

18.03.2026

O**E

29.04.2025

A**S

10.03.2026

K**E

10.04.2026

D**H

23.04.2026

T**X

26.10.2025

L**O

13.08.2023

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Anita G.

Good experience, but the tracking updates could be better.

2 months ago

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Excellent communication throughout the order process. Product is perfect.

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