There has 2 version:
Europe version: works on ps2 77001 and 77002 PAL version and ps2 V1-V17 (PAL/NTSC)
USA version: works on ps2 77001 and 77002 USA version and ps2 V1-V17 (PAL/NTSC)

Feature:
Green fixed
Auto boot function; (auto detects the disc type then chose corresponding subroutine for it)
Dev1 mode compatible; (HD games can be booted from memorycard, no need HD loader disc any more)
Auto sleep function for online games and auto wake up when ps2 protected games; (wake up when it
needs the cdvdman patchs)
Small size is easy for installation, and it is a universal chip for ps2 v1-v16
Fully compatible with ps2 CD-R/DVD/DVD9/Back up/import games£¬PSX CD/CD-R
Upgradeable! UBICOM chip use flash configuration£¬it can be erased thounds of times

Operation:
A. Ps2 games or auto boot: prss the ps2 "reset" button normally from standby mode, or press
" reset" button normally after you changed the games from the CD tray.
B. Psx games or DVD movie: press the ps2 "reset" button and hold it till the blue led lights ,
or press " reset" button normally after you changed the games from the CD tray.
C. Sleep function: press the "reset" button and hold it for 4 seconds approximately, the chip
can be disabled automatically.
D. DEV1 mode: press the ps2 "reset" button for 4 seconds then release, and press the "reset"
button again (normally press) during