I2C distribution board

I had an old I2C connector board lying around. It has a chip on it. I was wondering what is that for. Has anybody used it and can it be trusted? I tried reading the chip number but looks like there is none on it.

It looks like a resistor network for I2C pull-up purpose, not a chip.
Measure it with a multimeter.

that board is probably more reliable than one without it.