Low- and mid-range switches: number of available ports
Meaning of suffixes:
T: 1000BASE-T
C: Modular
P: SFP (Small Form Pluggable)
TP: Optical-Power Multiplexing
F: Full Optical Port
R: Redundant (R suffix stands for Rackmount Switch in SOHO grade products)
M: MCE support
HI: Flagship
EI: Enhanced
SI: Standard
PWR: Remote Power Supply
DC: DC Power Supply
AC: AC power supply
V: VLAN segmentation (SOHO products)
E: Enhanced (SOHO products), E prefix indicates education network dedicated switch
H: Enhanced (SOHO)