PWR2-20W-AC=

C891F-K9
1RU
1-port GE or 1‑port SFP
1-port FE
8-port 10-/100-/1000-Mbps managed switch (4‑ports PoE capable with 125W power supply adapter)
DRAM: 512MB
Flash Memory: 256MB

C881-K9
1RU
LAN: 4 x 10Base-T/100Base-TX – RJ-45
Management: 1 x console – RJ-45
WAN : 1 x 10Base-T/100Base-TX – RJ-45
USB : 1 x 4 PIN USB Type A
2 port integrated PoE
Up to 15 Mbps
256 (default) / 768 MB (Max)
128 MB