D-Link DGS-1210-20 20-Port Gigabit WebSmart Switch With 16 UTP And 4 SFP Ports

Management features
Switch type What switch device has, managed or unmanaged.	Managed
Switch layer A network switch is a computer networking device that links networking segments. A switch has different layers, such as layer 2 (a network bridge, operating at the data link layer, interconnecting a small number of devices) and layer 4 (can act as a firewall, amongst other things).	L2
Quality of Service (QoS) support
MIB support	SNTP, ICMPv6, IPv4/v6

Ports & interfaces
Basic switching RJ-45 Ethernet ports quantity The number of basic switching RJ-45 Ethernet ports (sockets).	20
Gigabit Ethernet (copper) ports quantity	16
SFP/SFP+ slots quantity	4
SFP module slots quantity	4

Network
Networking standards The way in which the network is working, e.g. IEEE 802.11a, IEEE 802.11b, IEEE 802.11g.	IEEE 802.3,IEEE 802.3ab,IEEE 802.3u,IEEE 802.3x
10G support The product can use Oracle 10G, which is a database management system introduced in 2003.
Port mirroring
Full duplex A full-duplex system allows communication in both directions, and unlike half-duplex, allows this to happen simultaneously.
Flow control support
Auto MDI/MDI-X A Medium Dependent Interface (MDI) describes the interface (both physical and electrical) in a computer network from a physical layer implementation to the physical medium used to carry the transmission. Ethernet over twisted pair also defines a medium dependent interface crossover (MDIX) interface. Auto-MDIX ports on newer network interfaces detect if the connection would require a crossover, and automatically chooses the MDI or MDIX configuration to properly match the other end of the link.
Spanning tree protocol
Head-of-line (HOL) blocking
VLAN support A Virtual Local Area Network (VLAN) consists of a group of computers and switches that can be physically distributed over different networks and buildings, but form one LAN on a logical level.

Data transmission
Supported data transfer rates Rates at which data can be transferred. May vary according to network configurations.	10/100/1000 Mb/s
Switching capacity The data transfer capacity of the switch per second.	40 Gbit/s
MAC address table The MAC address is the 'Media Access Control Address'. It is a unique address given to a network interface controller (NIC) in a device. A MAC address table shows the addresses in a table format.	16000 entries
Store-and-forward
Maximum data transfer rate	1 Gbit/s
Packet buffer memory	1 MB

Security
DHCP features	DHCP server,DHCP client
Access Control List (ACL)
IGMP snooping
MAC address filtering Security access control method whereby the 48-bit address assigned to each network card is used to determine access to the network. MAC addresses are uniquely assigned to each card, so using MAC filtering on a network permits and denies network access to specific devices through the use of blacklists and whitelists.
Static port security
SSH/SSL support

Multicast features
Multicast support

Protocols
Management protocols	SNMP, RMON
Data link protocols	IP

Design
Rack mounting The type of mounting that can position devices in a shelving system (rack).
Stackable Devices can be placed on top of each other.
Form factor The shape or design of the product.	1U
Product colour The colour e.g. red, blue, green, black, white.	Black
LED indicators
Cable management Description of improved cable management
Safety List of regulatory safety standards for all countries in which this product has been certified.	cUL, CE LVD
Certification	FCC, CE, ICES, VCCI, BSMI, C-Tick

Technical details
Shipping (inner) case height	38.6 cm
Shipping (inner) case width	34.6 cm
Shipping (inner) case length	38.2 cm
Shipping (inner) case net weight	14.9 kg
Quantity per shipping (inner) case	5 pc(s)
Shipping (inner) case gross weight	15.7 kg
Pallet gross weight (air)	448.5 kg
Number of cartons per pallet (air)	27
Quantity per pallet (air)	135 pc(s)
Pallet length	110 cm
Pallet width	120 cm
Pallet height (air)	129.3 cm
Pallet gross weight (sea)	731 kg
Number of cartons per pallet (sea)	45
Quantity per pallet (sea)	225 pc(s)
Pallet height (sea)	2.06 m

Power
AC input voltage The voltage of the AC electricity that is inputted into the product.	100 - 240 V
Power consumption (typical) Amount of power consumed by this model, often expressed in watts (W). Typical values that manufacturers give are power consumption when off, standby/suspended mode, typical use, maximum usage.	14.06 W

Power over Ethernet (PoE)
Power over Ethernet (PoE) The device supports Power over Ethernet (PoE), which is one of several standardized or ad-hoc systems which pass electrical power along with data on Ethernet cabling. This allows a single cable to provide both data connection and electrical power to devices such as wireless access points or IP cameras.

Operational conditions
Operating temperature (T-T)	41 - 122 °F
Storage temperature (T-T) The minimum and maximum temperatures at which the product can be safely stored.	-20 - 70 °C
Operating relative humidity (H-H)	0 - 95%
Storage relative humidity (H-H)	0 - 95%

Weight & dimensions
Width The measurement or extent of something from side to side.	440 mm
Depth The distance from the front to the back of something.	140 mm
Height The measurement of the product from head to foot or from base to top.	44 mm
Weight Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.	2.2 kg

Packaging data
Package width The distance from one side of the packaging to the other.	357 mm
Package depth The distance from the front to the back of the packaging.	331 mm
Package height The distance from the top to the bottom of the packaging.	72 mm
Package weight Weight of the packaged product.	2.97 kg

Other features
Packet transfer speed Rate at which data can be transferred by packet.	29.8Mp/s
Power LED