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ST3450857SS _ RFB
Seagate Cheetah 450GB 3.5, 450 GB, 15000 Giri/min, 16 MB, 3.5", SAS
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Descrizione
In today's hyper-connected world, reliable access to network resources is critical to all businesses. However, you also need to invest wisely to stay competitive, knowing how to separate the essential from the extraneous and get the most value for your dollar. For investment in network infrastructure, building a solid foundation for your business is essential, but it doesn’t mean you need the most advanced feature set on the market.
For businesses requiring high performance, advanced security, and rich manageability from the network, fully managed switches are an excellent choice. However, they also typically come with high price tags. Smart switches provide the right level of network features and capabilities for growing businesses at a lower price, so you’ll have more dollars to put toward other areas of your business.
With Cisco 250 Series Smart Switches, you can achieve business-class network performance and security without paying for advanced network features that you will not use. When you need a reliable solution to share online resources and connect computers, phones, and wireless access points, but low cost is a top priority, Cisco 250 Series Smart Switches provide the ideal solution.
For businesses requiring high performance, advanced security, and rich manageability from the network, fully managed switches are an excellent choice. However, they also typically come with high price tags. Smart switches provide the right level of network features and capabilities for growing businesses at a lower price, so you’ll have more dollars to put toward other areas of your business.
With Cisco 250 Series Smart Switches, you can achieve business-class network performance and security without paying for advanced network features that you will not use. When you need a reliable solution to share online resources and connect computers, phones, and wireless access points, but low cost is a top priority, Cisco 250 Series Smart Switches provide the ideal solution.
Specifiche
Data transmission
| Forwarding rate | 9.52 Mpps |
| Jumbo frames | 9000 |
| Jumbo frames support | Yes |
| MAC address table | 8000 voci |
| Number of queues | 8 |
| Packet buffer memory | 12 MB |
| Switching capacity | 12.8 Gbit/s |
Design
| Certification | UL 60950, FCC 15 A, CSA 22.2 |
| Form factor | 1U |
| LED indicators | Yes |
| Number of fans | 2 ventola(e) |
| Product colour | Black |
| Rack mounting | Yes |
| Reset button | Yes |
Management features
| Quality of Service (QoS) support | Yes |
| Switch layer | L2/L3 |
| Switch type | Managed |
| System event log | Yes |
| Web-based management | Yes |
Multicast features
| Multicast support | Yes |
Network
| 10G support | No |
| Broadcast storm control | Yes |
| Copper ethernet cabling technology | 100BASE-T/10BASE-T |
| Head-of-line (HOL) blocking | Yes |
| Link aggregation | Yes |
| Networking standards | IEEE 802.1D/IEEE 802.1p/IEEE 802.1Q/IEEE 802.1s/IEEE 802.1w/IEEE 802.1x/IEEE 802.3/IEEE 802.3ab/IEEE 802.3ad/IEEE 802.3af/IEEE 802.3at/IEEE 802.3az/IEEE 802.3u/IEEE 802.3x/IEEE 802.3z |
| Number of VLANs | 255 |
| Port mirroring | Yes |
| Rate limiting | Yes |
| Spanning tree protocol | Yes |
| Virtual LAN features | Protocol-based VLAN/Stacked VLAN/Voice VLAN |
| VLAN support | Yes |
Operational conditions
| Heat dissipation | 812.09 BTU/h |
| Operating relative humidity (H-H) | 10 - 90 % |
| Operating temperature (T-T) | 0 - 50 °C |
| Storage relative humidity (H-H) | 10 - 90 % |
| Storage temperature (T-T) | -20 - 70 °C |
Packaging content
| Quick start guide | Yes |
| Rack mount kit | Yes |
Packaging data
| Included power plug types | EU |
Performance
| Built-in processor | Yes |
| Firmware upgradeable | Yes |
| Flash memory | 256 MB |
| Internal memory | 512 MB |
| Mean time between failures (MTBF) | 314040 h |
| Noise level | 52.2 dB |
| Plug and Play | Yes |
| Processor frequency | 800 MHz |
Ports & interfaces
| Basic switching RJ-45 Ethernet ports quantity | 24 |
| Basic switching RJ-45 Ethernet ports type | Fast Ethernet (10/100) |
| Combo SFP ports quantity | 2 |
| Fast Ethernet (copper) ports quantity | 24 |
| Fiber optic connector | SFP |
| Installed SFP modules quantity | 0 |
| Installed SFP+ modules quantity | 0 |
| SFP module slots quantity | 2 |
| USB 2.0 ports quantity | 1 |
Power
| AC input frequency | 50 - 60 Hz |
| AC input voltage | 100 - 240 V |
| Power consumption (max) | 230 W |
| Power supply included | Yes |
Power over Ethernet (PoE)
| Power over Ethernet (PoE) | Yes |
| Power over Ethernet (PoE) ports quantity | 24 |
| Total Power over Ethernet (PoE) budget | 185 W |
Protocols
| GARP VLAN Registration Protocol (GVRP) | Yes |
| IPv4 & IPv6 features | Dual stack IPv4/IPv6 |
Security
| Access Control List (ACL) | Yes |
| Access Control List (ACL) rules | 512 |
| DHCP features | DHCP relay/DHCP server |
| DoS attack prevention | Yes |
| IGMP snooping | Yes |
| Loop protection | Yes |
| Queue scheduling algorithms | Weighted Round Robin (WRR) |
| Security algorithms | 802.1x RADIUS/HTTPS/SSH/SSL/TLS |
| SSH/SSL support | Yes |
Vendor information
| Brand Name | Cisco SB |
| Warranty | 1 |
Dettagli del prodotto
2025-12-10
Nuovo
Scheda tecnica
- Memoria flash
- 256 MB
- Tasto reset
- Yes
- Registro evento di sistema
- Yes
- Caratteristiche della LAN virtuale
- Protocol-based VLAN/Stacked VLAN/Voice VLAN
- Controllo Broadcast storm
- Yes
- Numero di VLA
- 255
- Caratteristiche DHCP
- DHCP relay/DHCP server
- Dissipazione del calore
- 812.09 BTU/h
- Anzahl der Warteschlangen
- 8
- Jumbo-Rahmen
- 9000
- MAC-Adresstabelle
- 8000 Eintragungen
- Unterstützung für Jumbo-Frames
- Yes
- Anzahl Fans
- 2 Lüfter
- Gestellmontage
- Yes
- Ebene wechseln
- L2/L3
- Schaltertyp
- Managed
- Webbasierte Verwaltung
- Yes
- Multicast-Unterstützung
- Yes
- Kupfer-Ethernet-Verkabelungstechnologie
- 100BASE-T/10BASE-T
- Link-Aggregation
- Yes
- Netzwerkstandards
- IEEE 802.1D/IEEE 802.1p/IEEE 802.1Q/IEEE 802.1s/IEEE 802.1w/IEEE 802.1x/IEEE 802.3/IEEE 802.3ab/IEEE 802.3ad/IEEE 802.3af/IEEE 802.3at/IEEE 802.3az/IEEE 802.3u/IEEE 802.3x/IEEE 802.3z
- Spanning-Tree-Protokoll
- Yes
- Anzahl Combo-SFP-Ports
- 2
- Grundlegende Anzahl von RJ-45-Ethernet-Ports
- 24
- Grundlegender Switching-RJ-45-Ethernet-Porttyp
- Fast Ethernet (10/100)
- Gesamtbudget für Power over Ethernet (PoE)
- 185 W
- Stromversorgung über Ethernet (PoE)
- Yes
- Algorithmen für die Warteschlangenplanung
- Weighted Round Robin (WRR)
- IGMP-Schnüffelei
- Yes
- Zugriffskontrollliste (ACL)
- Yes
- Prozessorfrequenz
- 800 MHz
- Firmware aktualisierbar
- Yes
- Quality of Service (QoS)-Unterstützung
- Yes
- Inklusive Netzteil
- Yes
- Schnellstartanleitung
- Yes
- Anzahl der USB 2.0-Anschlüsse
- 1
- Paketpufferspeicher
- 12 MB
- Portspiegelung
- Yes
- Ratenbegrenzung
- Yes
- Rack-Montage-Kit
- Yes
- SSH/SSL-Unterstützung
- Yes
- Weiterleitungstarif
- 9.52 Mpps
- Schleifenschutz
- Yes
- Plug-and-Play
- Yes
- Mean time between failures (MTBF)
- 314040 h
- Capacità di frenata
- 12.8 Gbit/s
- Formfaktor
- 1U
- LED-Anzeigen
- Yes
- Geräuschpegel
- 52.2 dB
- Zertifizierung
- UL 60950, FCC 15 A, CSA 22.2
- AC-Eingangsfrequenz
- 50 - 60 Hz
- AC-Eingangsspannung
- 100 - 240 V
- Sicherheitsalgorithmen
- 802.1x RADIUS/HTTPS/SSH/SSL/TLS
- Glasfaseranschluss
- SFP
- Eingebauter Prozessor
- Yes
- Enthaltene Netzsteckertypen
- EU
- Stromverbrauch (max.)
- 230 W
- 10G-Unterstützung
- No
- VLAN-Unterstützung
- Yes
- Brand Name
- Cisco SB
- Warranty
- 1
- Betriebstemperatur (TT)
- 0 - 50 °C
- Lagertemperatur (TT)
- -20 - 70 °C
- Relative Luftfeuchtigkeit bei Lagerung (HH)
- 10 - 90 %
- Relative Luftfeuchtigkeit im Betrieb (HH)
- 10 - 90 %
- Interner Speicher
- 512 MB
- Produktfarbe
- Black
- Anzahl der SFP-Modulsteckplätze
- 2
- Anzahl der Power over Ethernet (PoE)-Anschlüsse
- 24
- Head-of-Line (HOL)-Blockierung
- Yes
- Anzahl der installierten SFP-Module
- 0
- Anzahl der installierten SFP+-Module
- 0
- IPv4- und IPv6-Funktionen
- Dual stack IPv4/IPv6
- GARP VLAN-Registrierungsprotokoll (GVRP)
- Yes
- Anzahl Fast Ethernet (Kupfer) Ports
- 24
- Regeln der Zugriffskontrollliste (ACL)
- 512
- Verhinderung von DoS-Angriffen
- Yes
Riferimenti Specifici
- isbn
- 978-1-23456-789-0
- ean13
- 8826589943710
- MPN
- SF250-24P-K9-EU
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