Table:
0
A
B
C
D
E
1
Comparisons
Hub Base Class
Emulated Class
Semi-DDM Class
DDM Class
2
USB RE-Enumeration Required
Required on every switch of port
NO, only for keyboard/mouse
NO, for all USB-HID devices
NO, for all USB-HID devices
3
Supports Hot-Key Command
NO
Yes, only on dedicated keyboard port
Yes, all the console Semi-DDM ports
Yes, all the console DDM ports
4
Supports Special Keyboard and Mouse functions
Limited*
NO, only acts as standard keyboard/mouse
Yes
Yes
5
Wireless Combo keyboard and mouse support
Limited*
NO
Yes*
Yes
6
USB-HID device (other than keyboard/mouse) support
Limited*
NO
Yes*
Yes
7
USB Touchscreen Sharing Support
Limited*
NO
Yes*
Yes
8
Drawing Tablet Support
Limited*
NO
Yes*
Yes

Questions and formulas:
Question: Is drawing tablet support part of the semi-DDM class?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="Drawing Tablet Support"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,A2:A8="Drawing Tablet Support"),4))
Level: medium
Question: Is  usb re-enumeration required part of the emulated class?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="USB RE-Enumeration Required"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,A2:A8="USB RE-Enumeration Required"),3))
Level: medium
Question: Is wireless combo keyboard and mouse support part of the hub base class?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="Wireless Combo keyboard and mouse support"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,A2:A8="Wireless Combo keyboard and mouse support"),2))
Level: medium
Question: Is the drawing tablet support part of the DDM class?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="Drawing Tablet Support"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,A2:A8="Drawing Tablet Support"),5))
Level: medium
Question: Is  wireless combo keyboard and mouse support part of the DDM class?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="Wireless Combo keyboard and mouse support"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,A2:A8="Wireless Combo keyboard and mouse support"),5))
Level: medium