JetStream™ 28-port Pure-Gigabit L3 Managed Switch, 24 10/100/1000Mbps RJ45 ports including 4 combo Gigabit SFP  slots, 2 integrated 10G SFP+ Slots, 2 optional 10G SFP+ Slots. Abundant L3 routing protocols including Static Routing/RIP/OSPF/ECMP/VRRP, True Physical Stacking up to 8 units, Port/Tag/Voice/Protocol-Based VLAN, Q-in-Q (Double VLAN), GVRP, STP/RSTP/MSTP, PIM-SM/PIM-DM, IGMP V1/V2/V3 Snooping, COS, DSCP, Rate Limiting, 802.1x, IEEE 802.3ad, L2/3/4 ACL, Port  Mirroring, IP Source Guard, SSL, SSH, CLI, SNMP, RMON, 1U 19-inch rack-mountable steel case

Features:

• Removable power unit and redundant power supply functionality minimizes downtime
• PIM-SM/PIM-DM/IGMP Snooping for resilient video deployments
• Abundant Layer 3 routing protocols including RIP/OSPF/ECMP/VRRP that support a scalable network
• True Physical Stacking technology supports up to 8 units and 320Gbps backplane bandwidth for high scalability and efficient redundancy
• 10 Gigabit Ethernet uplink provides high-bandwidth applications for congestion relief and smooth data delivery

Specifications:

Interface :
24 10/100/1000Mbps RJ45 Ports
(Auto Negotiation/Auto MDI/MDIX)
4 combo gigabit SFP Slots
Up to 4 10G SFP+ Slots (2 fixed and 2 optional 10G SFP+ Slots)
1 Console Port

Network Media :
10BASE-T: UTP category 3, 4, 5 cable (maximum 100m)
100BASE-TX/1000Base-T: UTP category 5, 5e or above cable (maximum 100m)
100BASE-FX: MMF, SMF
1000BASE-X: MMF, SMF
10GBASE-LR
10GBASE-SR

Fan Quantity : 4
Power Supply : 100~240VAC, 50/60Hz
Dimensions ( W x D x H ) : 17.32*13*1.73 in.(440*330*44 mm)

PHYSICAL STACKING

Installable SFP+ Transceivers and Direct Attach Copper (DAC) Cables : TXM431-SR
TXM431-LR
TXC432-CU1M
TXC432-CU3M

Max Number of Stacking Ports Installable : 2 SFP+
No. of Units Per Stack : 8
Stacking Speed (Per Port) : 20 Gbps (Full-Duplex)

PERFORMANCE

Switching Capacity : Up to 128Gbps for a standalone switch
Bandwidth/Backplane : Up to 320Gbps when 8 units in the stack
Packet Forwarding Rate : Up to 95.2Mpps for a standalone switch
MAC Address Table : 32K
Packet Buffer Memory : 16 Mbits
Jumbo Frame : 10240 Bytes
Number of Routes : 12K
Number of Static Routes : 256
Number of IP Interfaces : 128