the length is about 55CM. 1M4 on the package means 1 minute and 4 interfaces do not mean the length.
Product Introduction:
● One USB interface can be extended to four independent USB interfaces to expand four USB interfaces

● adopt the second generation USB adjusting device.
● plum blossom pocket shape, beautiful appearance design, easy to carry,
● computer automatic identification and installation, no external power supply, no driver, Plug and Play
● USB extension. Supply current of 500mA per port.
● support USB1.0/1.1, compatible with USB2.0, speed up to 12Mbps
● support Win95/98/ME/2000/XP, os8.5 or later
● can support multiple USB extensions at the same time, such as camera, mouse, keyboard, computer desk lamp, MP3, recording pen