HPE OfficeConnect 1920S 24G 2SFP PPoE+ 185W Switch (JL384A) I/O ports and slots - 24 RJ-45 autosensing 10/100/1000 PoE+ ports; Duplex: 10BASE-T/100BASE-TX: half or full; 1000BASE-T: full only - 2 SFP 100/1000 Mbps ports (IEEE 802.3z Type 1000BASE-X, IEEE 802.3u Type 100BASE-FX) Physical characteristics - Dimensions : 17.42(w) x 12.7(d) x 1.73(h) inch or (44.25 x 32.26 x 4.39 cm) (1U height) - Weight : 9.7 lb (4.4 kg) Memory and processor - ARM Cortex-A9 @ 400 MHz, 256 MB SDRAM, 64 MB flash; packet buffer: 1.5 MB Mounting and enclosure - Mounts in an EIA standard 19-inch telco rack or equipment cabinet (hardware included) Performance - 100 Mb Latency : < 7µs - 1000 Mb Latency : < 2µs - Throughput : Up to 77.3 Mpps (64-byte packets) - Routing/Switching capacity : 52 Gbps - Routing table size : 32 entries - MAC address table size : 16000 entries Reliability - MTBF (years) : 57.1 Environment - Operating temperature : 32°F to 104°F (0°C to 40°C) - Operating relative humidity : 15% to 95%, noncondensing @ 104°F (40°C) - Nonoperating/Storage temperature : -40°F to 158°F (-40°C to 70°C) - Nonoperating/Storage relative humidity : 15% to 95%, noncondensing @ 140°F (60°C) - Altitude : up to 10,000 ft (3 km) - Acoustic : Power: 45 dB Electrical characteristics - Frequency : 50/60 Hz - AC voltage : 100 - 127/200 - 240 VAC - Current : 3.5/1.9 A - Maximum power rating : 435 W - Idle power : 34.2 W - PoE power : 370 W PoE+ ** Note : Maximum power rating is the worst-case theoretical maximum value for planning the infrastructure with fully loaded PoE, 100% traffic and all ports plugged in. Safety - UL 60950-1; IEC 60950-1; EN 60950-1; CAN/CSA-C22.2 No. 60950-1; EN 60825-1 Emissions - VCCI Class A; CNS 13438; ICES-003 Issue 5 Class A; FCC CFR 47 Part 15, Class A; EN 55032: 2015/CISPR-32 Management - Web browser; SNMP Manager Warranty - HPE Limited Lifetime warranty