24 Ethernet 10/100/1000 ports, 4 Gig SFP ports, fixed AC power

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Item S1720-28GWR-4P
Fixed port 24 Ethernet 10/100/1000 ports and 4 Gig SFP ports
Forwarding Performance 42 Mpps
Switching Capacity 68 Gbit/s
Memory (RAM) 512M
Flash Memory 240M
Mean-Time-Between- Failures (MTBF), years 45
Mean-Time-To-Repair (MTTR), hours 2
Security features Packet filtering based on MAC addresses MAC address authentication
Port-based 802.1x authentication RADIUS authentication
Portal authentication Port isolation
Storm suppression DHCP snooping
VLAN assignment based on access, trunk, and hybrid ports
Management VLAN Voice VLAN
QoS PQ and WRR
Eight queues on each port
Queue scheduling based on 802.1p or DSCP priorities
STP STP (IEEE 802.1d) RSTP (IEEE 802.1w)
MSTP (IEEE 802.1s)
Multicast IGMP snooping and a maximum of 1K multicast groups
Fast leave
Routing Feature IPv4 and IPv6 static routing
Link Aggregation 64 Link Aggregation Groups (LAGs) with a maximum of eight ports in each LAG
Static LACP
Port Mirroring Port-based bi-directional flow mirroring
Bandwidth Control Rate limiting for incoming and outgoing packets, with a granularity of 64 kbit/s
Broadcast Storm Suppression Broadcast storm suppression based on the interface rate
Alarm sending when the traffic rate reaches the upper limit
Device Management Web system network management DHCP client
One-key restoration
You can upgrade the web-managed S1720 model to the fully-managed model by purchasing a license.
Device Maintenance System log Ping
Virtual Cable Test (VCT)
Link Layer Discovery Protocol (LLDP)
AC Input Voltage Rated voltage range: 100 V to 240 V AC; 50/60 Hz
Maximum voltage range: 90 V to 264 V AC; 47 Hz to 63 Hz
Maximum Power Consumption (100% throughput, full speed of fans) 3.9 W
Operating Temperature 0-1800m: 0°C-45°C
1800-5000m: decrease 1℃ when the altitude increases every 220m
Noise (under normal temperature-sound power) Silent (no fan)
Relative Humidity (RH) 5% RH to 95% RH
Operating Altitude 0 m to 5, 000 m
Dimensions (W x D x H)  320 mm x 208 mm x 43.6 mm
Weight (without optical modules) 1.63 kg

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