24 10 / 100 / 1000M port 4 SFP slots this is the ... standards : IEEE 802.3, IEEE 802.3u, IEEE 802.1x, IEEE 802.1Q, IEEE 802.1p, IEEE 802.1D, IEEE 802.1s, IEEE 802.1w, IEEE 802.3ad, IEEE 802.3z, IEEE 802.3Port number : 24Interface medium : 10 / 100Base-T, 10 / 100 / 1000Base- ... system, RPS, link, link, link speed duplexPower supply voltage : 100 VAC-240VAC, 50Hz / 60Hz, 1.3-0.8AEnvironmental standards: ...