USB-to-I2C Elite USB-to-I2C Pro USB-to-I2C Basic LPT-to-I2C SE Pro Translator/Level Shifter
Windows-based general
purpose I2C application
Ability to read and write
I2C EEPROMs using
user-friendly software
Note 1
Enhanced EEPROM and FLASH I2C device programming software  
DLL for creating your
own I2C and SPI applications
1 Mb/s I2C      

 Fast-Mode Plus

 

 

I2C Slave capable
General purpose SPI software    
SPI Master 12 Mb/s 4 Mb/s  6 Mb/s
Ability to read and write
SPI EEPROMs using
user-friendly software
Dedicated EEPROM and FLASH
SPI device programming software
High-speed processor 72 MHz 48 MHz 48 MHz
 General purpose SchmittTrigger input      
Dedicated general-purpose
output (does not use the I2C
or SPI pins)
 
User upgradable firmware      
Switchable 3.3V and 5V
power outputs
 Enclosure      Note 2
PC Parallel-port I2C interface
host adapter hardware
32-bit Windows operating
system drivers (XP, Vista,
Windows 7, Windows 8, Windows 10)
64-bit Windows operating
system drivers (XP, Vista,
Windows 7, Windows 8, Windows 10)
Notes:
Note 1:  USB-to-I2C Basic does not have a dedicated EEPROM software interface, but relies on the general-purpose software tools.
Note 2: USB-to-I2C Basic does not have an enclosure, but does have a non-conductive tape on the bottom of the PCB.