D-Link DGS-3420-28TC Managed network switch L2+ Power over Ethernet (PoE) network switch

xStack L2+ Managed Stackable Gigabit SwitchesThe xStack DGS-3420 series of next generation Layer 2+ Gigabit switches delivers performance,flexibility, security, multi-layer QoS, and accessibility, along with redundant power solutions for SMBsand enterprises. With high Gigabit port densities, Gigabit SFP, 10-Gigabit SFP+ support, and advancedsoftware solutions, these switches can act as either departmental access layer devices or aggregationswitches to form a multilevel network structured with backbone and centralized high-speed servers.Service providers can take advantage of the high SFP density switches (such as DGS-3420-28SC/26SC) to structure the aggregation of Fiber to the Building (FTTB)networks that are extended to the subscribers’ sites.Unparalleled FlexibilityEasily deployed and simple to manage, the DGS-3420 can be stacked with any switch that supports D-Link’s Single IP Management to form a multi-level network structured with backbone and centralized high-speed servers. The virtual stack can include units located anywhere on thesame network domain, and uses optional 10-Gigabit uplinks to move intra-stack traffic at 20 Gbps full duplex speeds.Redundant Ring StackingAlternatively, depending on whether linear or faulttolerant ring stacking is implemented, users can use one or two 10-Gigabit SFP+ ports to create a physical stack. 12 units or 576 Gigabit ports can be configured for a stack using direct attach cables to provide high bandwidth on the DGS-3420

Management features
Switch type	Managed
Quality of Service (QoS) support	Yes
Multicast support	Yes
Switch layer	L2+
Ports & interfaces
SFP module slots quantity	4
SFP+ module slots quantity	4
Basic switching RJ-45 Ethernet ports quantity	24
SFP/SFP+ slots quantity	4
Console port	RJ-45
Networking
Networking standards	IEEE 802.1D,IEEE 802.1p,IEEE 802.1Q,IEEE 802.1v,IEEE 802.1w,IEEE 802.1x,IEEE 802.3ad,IEEE 802.3ah,IEEE 802.3x
Full duplex	Yes
VLAN support	Yes
Spanning tree protocol	Yes
Routing entries	1000
Port mirroring	Yes
IP routing	Yes
IGMP snooping	Yes
Flow control support	Yes
DHCP server	Yes
DHCP client	Yes
Broadcast storm control	Yes
10G support	Yes
Data transmission
MAC address table	16000 entries
Switching capacity	128 Gbit/s
Number of VLANs	4000
Jumbo frames support	Yes
Security
SSH/SSL support	No
MAC address filtering	Yes
IGMP snooping	Yes
Access Control List (ACL)	Yes
Design
Rack mounting	Yes
Performance
Packet buffer memory	2 MB
Noise level	46.5 dB
Mean time between failures (MTBF)	287763 h
Power
AC input voltage	100-240
AC input frequency	50/60
Power consumption (typical)	50.8 W
Technical details
Noise level	46.5 dB
Mean time between failures (MTBF)	287763 h
Rack mounting	Yes
Power over Ethernet (PoE)
Power over Ethernet (PoE)	Yes
Memory
Packet buffer memory	2 MB
Operational conditions
Storage temperature (T-T)	-40 - 70 °C
Storage relative humidity (H-H)	5 - 90%
Operating temperature (T-T)	0 - 50 °C
Operating relative humidity (H-H)	10 - 90%
Weight & dimensions
Width	441 mm
Depth	310 mm
Height	44 mm
Weight	4.12 kg

• No. of Ports: 24-Ports
• Product Type: Managed

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1. 1. Non-Returnable Products:

      • Any product that is not a 3D memory item becomes non-returnable and non-cancellable once processed.

      • A restocking fee of up to 25% may apply on certain products, depending on the product category.

   2. Product Condition:

      • All products are shipped as refurbished by default, unless selected otherwise for new retail condition at the time of order.

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      • Items are typically dispatched within 24 hours, subject to stock availability.

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      • Our online shipping calculator estimates costs for items under 5 lbs. For heavier equipment (e.g., servers, motherboards, racks), shipping costs may differ — our customer service team will confirm before finalizing the order.

   4. Manufacturer Part Numbers:

      • Many manufacturers (such as HP, Dell, IBM, and Compaq) assign corresponding Spare Part Numbers (Spare P/N#) or Field Replacement Unit Numbers (FRU#) to their products.

      • The received item may display one of these numbers, which are valid replacements for the ordered part.

      • For assistance verifying compatibility, contact our Sales Department.

   5. Warranty Policy:

      • Most items include a 30-day limited DOA (Dead on Arrival) exchange warranty for replacement with the same part only.

      • Some drives may carry a 90-day warranty—please confirm with our sales team.

      • Additional warranties (manufacturer, service, or extended) may also apply depending on the product.

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   7. End-of-Life (EOL) Products:

      • EOL items that are no longer in production may be replaced with a compatible equivalent featuring the same FRU number and functionality.

   8. Contact & Support:

      • For any concerns or questions regarding product conditions, shipping, or compatibility, please reach out to:
        📧 support@itnetworkstrade.com
        ☎️ (512) 881 3587

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