The RTL8381M-VB-CG is a new generation Gigabit switches supporting Energy Efficient Ethernet (EEE). The RTL8380M-VB is an 14-port 10/100/1000M switch controller
The RTL8381M-VB supports two-pairs of SGMII/1000Base-X.
The RTL8381M-VB also supports one serially connected QSGMII interface port to connect to 1 Quad Gigabit PHY (RTL8214FC/RTL8214C)
14-port Gigabit wire speed forwarding capability
Embedded 8-port 10/100/1000M Ethernet PHY
Supports two pairs of SGMII/1000Base-X
Supports one pair of QSGMII to connect to external 4-port 10/100/1000M Ethernet PHYs
Flexible Interfaces for Internal or External CPU
Serial/Dual I/O mode 32MB SPI Flash
Up to 128MB DDR1/DDR2 and 256MB DDR3 for internal MIPS-4KEc
Embedded MIPS-4KEc with MMU
Managed 8*1000MUTP+4*1000M Combo+2*1000Base-X Switch
Managed 12*1000M UTP+2*1000Base-X Switch