DGS-1210-52MP: 52-Port Gigabit Max PoE Smart Managed Switch including 4 SFP ports (48 x PoE ports, fan)
Features
Green Technology
    Power saving via the following features:
        Link Status detection
        LED Shut-Off
        Port Shut-Off
        System Hibernation
        Time-based PoE (DGS-1210-10P/28P/52P/52MP only)
Security Features
    Access Control List secures network
    D-Link Safeguard Engine protects CPU from Broadcast/Multicast/Unicast Flooding
    Port Security supports 64 MACs per port
    ARP Spoofing Prevention
Intuitive Management
    D-Link Network Assistant Utility or Web-based GUI
    Built-in SNMP MIB for remote NMS (D-View 6.0)
    Compact CLI through Telnet
Advanced Features
    Auto Surveillance VLAN
    Loopback Detection automatically disables a port when a loop is detected
    Cable Diagnostics allows administrators to determine cable status
    SFP ports for flexibility
    Auto MDI/MDIX 
Interface
Number of 10/100/1000BASE-TX ports
    DGS-1210-52/52P/52MP - 48 ports
Number of SFP ports
    DGS-1210-20/28/28P/28MP/52/52P/52MP - 4 ports
PoE Supported Models (Standard(s)/Number of Ports/Maximum Power Budget)
    DGS-1210-52MP (802.3af/802.3at/52 ports/370W)
Performance
Switch Capacity
    DGS-1210-52/52P/52MP - 104 Gbps
64-Byte Packet Forwarding Rate
    DGS-1210-52/52P/52MP - 77.4 Mpps
MAC Address Table Size
    16K
Packet Buffer
    DGS-1210-52/52P/52MP - 3 MB per device
Jumbo Frame
    Up to 9,216 Bytes
Physical & Environmental
Power Consumption (Standby/Maximum)
    DGS-1210-52MP - 48.9W / 483.1W (PoE)
Power Input
    10 to 240 VAC, 50/60HZ internal universal power supply
Dimensions (W x D x H)
    DGS-1210-52MP - 440 x 430 x 44 mm 
Weight
    DGS-1210-52MP - 5.78 kg
Ventilation
    DGS-1210-52MP - smart fans
Heat Dissipation
    DGS-1210-52MP - 1,648.23 BTU per hour
Temperature
    Operating: -5° to 50°C (23° to 112°F)
    Storage: -20° to 70°C (-4° to 158°F )
Humidity
    Operating: 0% ~ 95% non-condensing
    Storage: 0% ~ 95% non-condensing
Certification
    CE Class A, VCCI Class A, FCC Class A, cUL, CE (LVD), BSMI, CCC, C-Tick
Software Feature
L2 Features
    MAC Address Table
        16K entries
    IGMP Snooping
        IGMP v1/v2 Snooping
        Supports 256 IGMP groups
        Supports at least 64 static multicast addresses
        IGMP per VLAN
        Supports IGMP Snooping Querier
    Loopback Detection
    802.3ad Link Aggregation:
        DGS-1210 28/28P/28MP:  Maximum of 14 groups/8 ports per group
        DGS-1210 52/52MP/52P: Maximum of 26 groups/8 ports per group
        DGS-1210 -10/10P: Maximum of 5 groups/8 ports per group
    LLDP
    LLDP-MED
    Jumbo Frame
        Up to 9,216 bytes
    Spanning Tree Protocol
        802.1D STP
        802.1w RSTP
        802.1s MSTP (for DGS-1210-28MP only)
    Flow Control
        802.3x Flow Control
        HOL Blocking Prevention
    Port Mirroring
        One-to-One
        Many-to-One
        Supports Mirroring for Tx/Rx/Both
    Multicast Filtering
        Forwards all unregistered groups
        Filters all unregistered groups
    Configurable MDI/MDIX
        MLD snooping v1/v2 (256 groups)
VLAN
    802.1Q
    VLAN Group
        Max. 256 static VLAN groups
    Configurable VID from 1 - 4094
    Asymmetric VLAN 
    Auto Voice VLAN
        Max. 10 user-defined OUI
        Max. 8 default OUI
    Auto Surveillance VLAN
Quality of Service (QoS)
    802.1p Quality of Service
    8 queues per port
    Queue Handling
        Strict
        Weighted Round Robin (WRR)
    Bandwidth Control
        Port-based (Ingress/Egress, min granularity 10/100/1000 is 64 Kbps) 
    QoS based on:
        802.1p Priority Queues
        DSCP
        ToS
        IPv6 Traffic Class
        TCP/UDP port
L3 Features
    IP Interface
        Supports 1 interface 
    IPv6 Neighbor Discovery (ND)
    Static Routing (for DGS-1210-28MP only)
        64 IPv4 Static Route Entries
        32 IPv4 Static Route Entries
Access Control List (ACL)
    Max. 50 access list
    Max. 768 rules shared by IPv4, MAC and IPv6
    Each rule can only be associated with a single port
    ACL based on
        802.1p priority
        VLAN
        MAC address
        Ether type
        IP address
        DSCP
        Protocol type
        TCP/UDP port number
        IPv6 Traffic Class
Security
    Broadcast/Multicast/Unicast Storm Control
    D-Link Safeguard Engine
    DHCP Server Screening
    IP-MAC-Port Binding (Smart Binding)
        Supports 512 address binding entries
        ARP Inspection
        ARP + IP Inspection
        Supports DHCP Snooping
    802.1X Port-based Access Control 
    ARP Spoofing Prevention
        Max. 64 entries
    Traffic Segmentation
    SSH v2
    SSL
        Supports v1/v2/v3
    Port Security
        Supports up to 64 MAC addresses per port
    Duplicate address detection
AAA
    802.1X Authentication
        Supports local/RADIUS database
        Supports port-based access control
        Supports EAP, OTP, TLS, TTLS, PEAP 
    IPv6 RADIUS Server
    Support MD5 authentication
MIB/RFC Standards
    RFC 783 TFTP
    RFC 951 BootP/DHCP Client
    RFC 1157 SNMP v1, v2, v3
    RFC 1213 MIB II
    RFC 1215 MIB Traps Convention
    RFC 1350 TFTP
    RFC 1493 Bridge MIB
    RFC 1769 SNTP
    RFC 1542 BootP/DHCP Client
    RFC 1901 SNMP v1, v2, v3
    RFC 1907 SNMP v2 MIB
    RFC 1908 SNMP v1, v2, v3
    RFC 2131 BootP/DHCP Client
    RFC 2138 RADIUS Authentication
    RFC 2139 RADIUS Authentication
    RFC 2233 Interface Group MIB 
    RFC-2246 SSL
    RFC 2475
    RFC 2570 SNMP v1, v2, v3
    RFC 2575 SNMP v1, v2, v3
    RFC 2598 CoS
    RFC 2618 RADIUS Authentication
    RFC 2819 RMON v1
    RFC 2865 RADIUS Authentication
    RFC 3164 System Log
    RFC 3195 System Log
    RFC 3411-17 SNMP
    D-Link Private MIB
    LLDP MIB
    Zone Defense MIB
    2233 Interface Group MIB
OAM
    Cable Diagnostics 
    Factory Reset
Management
    Web-based GUI
    D-Link Network Assistant Utility
    Compact CLI
    Telnet Server
    TFTP Client
    Configurable MDI/MDIX
    SNMP
        Supports v1/v2c/v3
    SNMP Trap
    Backup/Upgrade firmware
    Smart Wizard
    Upload/Download Configuration file 
    System Log
        Max. 500 log entries
    BootP/DHCP Client
    SNTP
    ICMP v6
    IPv4/v6 Dual Stack
    DHCP Auto Configuration
    Time Setting
        SNTP
    RMONv1
    Trusted Host
Green V3.0 Technology
    Power Saving by:
        Link Status
        Time-based PoE: PoE ports can be turned on/off by port or system through schedule 
        LED Shutoff
        System Hibernation
        Port Shutoff