RoHS stands for Restriction of Hazardous Substances. RoHS, also known as Directive 2002/95/EC, originated in the European Union and restricts the use of specific hazardous materials found in electrical and electronic products (known as EEE). All applicable products in the EU market after July 1, 2006 must pass RoHS compliance. The substances banned under RoHS are lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (CrVI), polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE), and four different phthalates (DEHP, BBP, BBP, DIBP). RoHS DELL S-Series S4148T-ON, Managed, L2/L3, 10G Ethernet (100/1000/10000), 100 Gigabit Ethernet, Rack mounting, 1U DELL S-Series S4148T-ON. Switch type: Managed, Switch layer: L2/L3. Basic switching RJ-45 Ethernet ports type: 10G Ethernet (100/1000/10000), Basic switching RJ-45 Ethernet ports quantity: 48. Switching optical modules type: 100 Gigabit Ethernet. USB 2.0 ports quantity: 1, Console port: RJ-45. Full duplex. MAC address table: 272000 entries, Switching capacity: 1760 Gbit/s. Networking standards: IEEE 802.1D, IEEE 802.1Q, IEEE 802.1Qaz, IEEE 802.1Qbb, IEEE 802.1ab, IEEE 802.1p, IEEE 802.1s,.... Power connector: AC-in jack. Rack mounting, Form factor: 1U