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SRW248G4-K9-EU SF300-48 48-port 10/100 Managed Switch with Gigabit Uplinks

Easy-to-Use Managed Switches that Provide the Ideal Combination of Features and Affordability

To stay ahead in a competitive marketplace, small businesses need to make every dollar count. That means getting the most value from your technology investments, but it also means making sure that employees have fast, reliable access to the business tools and information they need. Every minute an employee waits for an unresponsive application - and every minute your network is down - has an impact on your bottom line. The importance of maintaining a strong and dependable business network only grows as your business adds more employees, applications, and network complexity.

When your business needs advanced security and features but value is still a top consideration, you're ready for the new generation of Cisco® Small Business managed switches: the Cisco 300 Series.


Management features
Switch layer L3 
Quality of Service (QoS) support Yes
Web-based management Yes
MIB support SNMP 
Switch type Managed 
Ports & interfaces
SFP/SFP+ slots quantity
Copper ethernet cabling technology 10BASE-T, 100BASE-TX, 1000BASE-T 
Gigabit Ethernet (copper) ports quantity
Ports quantity 52 
Ethernet LAN (RJ-45) ports 52 
Fiber ports quantity
DC-in jack No
Networking standards IEEE 802.1D, IEEE 802.1w, IEEE 802.1s, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1x, IEEE 802.3ad 
Port mirroring Yes
DHCP client Yes
10G support -
DHCP server Yes
IP routing Yes
Spanning tree protocol Yes
Data transmission
Supported data transfer rates 10/100/1000 Mbps 
Switching capacity 17.6 Gbit/s
MAC address table  8000 entries
Number of VLANs 256 
Maximum data transfer rate 104 Gbit/s
Management protocols HTTP/HTTPS/TFTP 
Rack mounting  Yes
Colour of product Black 
Form factor  1U, 1 RU 
Ventilation fan(s)
LED indicators System, Link/Act, PoE, Speed 
Certification UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A
IEEE 802.3 10BASE-T Ethernet,
IEEE 802.3u 100BASE-TX Fast Ethernet,
IEEE 802.3ab 1000BASE-T Gigabit Ethernet,
IEEE 802.3ad LACP, IEEE 802.3z Gigabit Ethernet,
IEEE 802.3x Flow Control,
IEEE 802.1D (STP, GARP, and GVRP),
IEEE 802.1Q/p VLAN,
IEEE 802.1w RSTP,
IEEE 802.1s Multiple STP,
IEEE 802.1X Port Access Authentication,
IEEE 802.3af,
IEEE 802.3at,
         RFC 768, RFC 783, RFC 791, RFC 792,
         RFC 793, RFC 813, RFC 879, RFC 896, RFC 826,
         RFC 854, RFC 855, RFC 856, RFC 858, RFC 894,
         RFC 919, RFC 922, RFC 920, RFC 950, RFC 951,
         RFC 1042, RFC 1071, RFC 1123, RFC 1141,
         RFC 1155, RFC 1157, RFC 1350, RFC 1533,
         RFC 1541, RFC 1542, RFC 1624, RFC 1700,
         RFC 1867, RFC 2030, RFC 2616, RFC 2131,
         RFC 2132, RFC 3164, RFC 3411, RFC 3412,
         RFC 3413, RFC 3414, RFC 3415, RFC 2576,
         RFC 4330, RFC 1213, RFC 1215, RFC 1286,
         RFC 1442, RFC 1451, RFC 1493, RFC 1573,
         RFC 1643, RFC 1757, RFC 1907, RFC 2011,
         RFC 2012, RFC 2013, RFC 2233, RFC 2618,
         RFC 2665, RFC 2666, RFC 2674, RFC 2737,
         RFC 2819, RFC 2863, RFC 1157, RFC 1493,
         RFC 1215, RFC 3416 
Stackable No
Flash memory 16 MB
Firmware upgradeable Yes
Noise level 0 dB
Internal memory  128 MB
Mean time between failures (MTBF) 199664.2 h
Power consumption (typical) 29.2 W
Redundant power supply (RPS) support -
Input voltage 100 - 240 V
Power over Ethernet (PoE)
Power over Ethernet (PoE) support No
Operational conditions
Operating temperature (T-T) 0 - 40 °C
Storage temperature (T-T) -20 - 70 °C
Operating relative humidity (H-H) 10 - 90 %
Storage relative humidity (H-H) 10 - 90 %
Weight & dimensions
Weight 3390 g
Packaging data
Cables included Power, Serial 
Other features
Slot type SFP 
Dimensions (WxDxH)  440 x 44.45 x 350 mm
Weight 3.39 kg
Connectivity technology Wired 
Packet transfer speed 13.1 mpps 
Fan tray slots
Performance management HTTP/HTTPS/TFTP 
Size 19 "
Fan trays
Connectivity LEDs Yes
Input frequency 47.63 Hz
Dimensions (W x D x H) 17.3 x 1.45 x 13.78 "