D-Link 28-Port Gigabit Stackable POE+ Smart Managed Switch with 2 x 10GBase-T & 2 x 10G SFP+, Managed, L3, Gigabit Ethernet (10/100/1000), Power over Ethernet (PoE), Rack mounting, 1U

D-Link 28-Port Gigabit Stackable POE+ Smart Managed Switch with 2 x 10GBase-T & 2 x 10G SFP+. Switch type: Managed, Switch layer: L3. Basic switching RJ-45 Ethernet ports type: Gigabit Ethernet (10/100/1000), Basic switching RJ-45 Ethernet ports quantity: 20. MAC address table: 16384 entries, Switching capacity: 140 Gbit/s. Networking standards: IEEE 802.3, IEEE 802.3ab, IEEE 802.3ae, IEEE 802.3af, IEEE 802.3at, IEEE 802.3az, IEEE 802.3bz,.... Power over Ethernet (PoE). Rack mounting, Form factor: 1U

• Managed L3 Web-based management
• Basic switching RJ-45 Ethernet ports quantity: 20
• 10G support 10BASE-T, 100BASE-FX, 100BASE-TX, 1000BASE-T
• MAC address table: 16384 entries Switching capacity: 140 Gbit/s
• 1U Rack mounting Stackable
• AC Power over Ethernet (PoE)

Features

Management features
Switch type	Managed
Switch layer	L3
Web-based management	Yes
Ports & interfaces
Basic switching RJ-45 Ethernet ports quantity	20
Basic switching RJ-45 Ethernet ports type	Gigabit Ethernet (10/100/1000)
Gigabit Ethernet (copper) ports quantity	20
2.5G Ethernet (copper) ports quantity	4
10G Ethernet (copper) ports quantity	2
SFP+ module slots quantity	2
Fiber ports quantity	2
Fiber optic connector	SFP+
Network
Networking standards	IEEE 802.3, IEEE 802.3ab, IEEE 802.3ae, IEEE 802.3af, IEEE 802.3at, IEEE 802.3az, IEEE 802.3bz, IEEE 802.3u, IEEE 802.3x, IEEE 802.3z
10G support	Yes
Copper ethernet cabling technology	10BASE-T, 100BASE-FX, 100BASE-TX, 1000BASE-T
Flow control support	Yes
Link aggregation	Yes
Auto MDI/MDI-X	Yes
Spanning tree protocol	Yes
Head-of-line (HOL) blocking	Yes
VLAN support	Yes
Data transmission
Switching capacity	140 Gbit/s
Forwarding rate	104.16 Mpps
MAC address table	16384 entries
Store-and-forward	Yes
Static route	Yes
Jumbo frames support	Yes
Jumbo frames	12288
Security
DHCP features	DHCP snooping
IGMP snooping	Yes
Loop protection	Yes
BPDU filtering/protection	Yes
MAC address entries	Static MAC address entries
Multicast features
Multicast Listener Discovery (MLD) snooping	v1/v2
Protocols
GARP VLAN Registration Protocol (GVRP)	Yes
Routing protocols	OSPF, RIP, RIPng, VRRP
Design
Rack mounting	Yes
Stackable	Yes
Form factor	1U
Product colour	Black
LED indicators	Activity, Link, Power, Speed
Performance
Physical stacking (units)	8
Virtual stacking (units)	32
Noise level	57.1 dB
Mean time between failures (MTBF)	333946 h
Power
Power source	AC
AC input voltage	100 - 240 V
Power consumption (max)	453.3 W
Power over Ethernet (PoE)
Power over Ethernet (PoE)	Yes
Power over Ethernet plus (PoE+) ports quantity	20
Total Power over Ethernet (PoE) budget	370 W
Operational conditions
Operating temperature (T-T)	-5 - 50 °C
Storage temperature (T-T)	-40 - 70 °C
Operating relative humidity (H-H)	10 - 95%
Storage relative humidity (H-H)	5 - 95%
Heat dissipation	1545.8 BTU/h
Weight & dimensions
Width	441 mm
Depth	308.5 mm
Height	44 mm
Weight	4.29 kg
Certificates
Certification	CE Class A, FCC Class A, IC Class A, RCM Class A, VCCI Class A, BSMI Class A
Logistics data
Harmonized System (HS) code	85176990