Switches and Hubs
Switches and Hubs represent networking devices used to connect multiple devices in a local area network (LAN). Hubs operate at the physical layer of the OSI model, allowing devices to communicate with each other by forwarding data packets to all connected devices. On the other hand, Switches operate at the data link layer, ensuring efficient data transmission by forwarding packets only to the intended recipient. Switches and Hubs play a crucial role in creating a reliable and secure network infrastructure, improving overall network performance and speed. These devices are essential in managing network traffic, enhancing connectivity, and facilitating seamless communication between devices.
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D-Link DES-2205 ProFAST 10/100 Fast Ethernet Switch 4-Port 10Base-T 100Base-TX
D-LINK
$25.00Was: $50.00D-Link DES-2205 ProFAST 10/100 Fast Ethernet Switch 4-Port 10Base-T 100Base-TXThe D-Link DES-2205 is a managed 10/100 Fast Ethernet workgroup switch from D-Link's ProFAST series. It provides four 10Base-T RJ-45 ports for connecting workstations or other...21635- SKU:
- 21635
- Availability:
- Usually ships within 1–2 business days.
- Weight:
- 12.00 LBS
- Brand:
- D-Link
- Model:
- DES-2205
- MPN:
- DES-2205
- Type:
- 10/100 Fast Ethernet Switch
- SKU:
- 21635
- Product Line / Series:
- ProFAST
- Hardware Version:
- A1
- Number of Ports:
- 5 (4x 10Base-T RJ-45 + 1x 100Base-TX RJ-45 uplink)
- Port Speed:
- 10/100 Mbps
- LAN Ports:
- 4x 10Base-T RJ-45
- Uplink Port:
- 1x 100Base-TX RJ-45
- Management Interface:
- RS-232 DCE, 19200 N 8 1
- Management Type:
- Managed
- Connector Type:
- RJ-45, DB-9 RS-232 DCE
- Power Requirements:
- 100-240 VAC, 50-60 Hz, 0.5A Max., Fuse 1.5A
- Form Factor:
- Rackmount / Desktop, 1U
- Country/Region of Manufacture:
- United States
- Condition:
- Used – Inspected and in Good Condition
- Seller Notes:
- Unit only; inspected and in good condition. Please see photos.
- Condition Notes:
- D-Link DES-2205 ProFAST 10/100 Fast Ethernet Switch. Inspected and in good used condition. Light shelf wear; ports and chassis intact. Unit only, no cables included.
$25.00Was: $50.00 -
Nexland ISB SOHO Internet Sharing Box Broadband Router 4-Port RJ45 9VDC
Nexland
$30.00Was: $60.00Nexland ISB SOHO Internet Sharing Box Broadband Router 4-Port RJ45 9VDCThe Nexland ISB SOHO is a compact broadband Internet Sharing Box designed for small office and home office (SOHO) environments. It connects multiple local computers to a single...21224- SKU:
- 21224
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 5.00 LBS
- Brand:
- Nexland
- Model:
- ISB SOHO
- MPN:
- ISB SOHO
- Type:
- Broadband Router / Internet Sharing Box
- SKU:
- 21224
- Number of Ports:
- 4 x RJ45 LAN + 1 x RJ45 WAN
- Power Requirements:
- 9VDC, 1A
- Connector Type:
- RJ45
- Form Factor:
- Desktop
- Network Type:
- Wired Ethernet
- Condition:
- Used – Inspected and in Good Condition
- Seller Notes:
- Unit only; no power adapter included unless shown in photos.
- Country/Region of Manufacture:
- Taiwan
- Compatible With:
- SOHO broadband / DSL / cable modem environments
- Condition Notes:
- Nexland ISB SOHO broadband router inspected and in good used condition. Translucent enclosure shows light surface scuffing; ports and DC jack appear clean. No power adapter included. View photos and contact us with questions.
$30.00Was: $60.00 -
Netgear FS608 8-Port Fast Ethernet Switch 10/100 Mbps RJ45 Unmanaged Desktop
Netgear
$18.00Was: $40.00Netgear FS608 8-Port Fast Ethernet Switch 10/100 Mbps RJ45 Unmanaged DesktopAn 8-port unmanaged Fast Ethernet switch for connecting multiple devices on a local network. Operates at 10/100 Mbps per port with no configuration required.Specifications &...21223- SKU:
- 21223
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 5.00 LBS
- Brand:
- Netgear
- Model:
- FS608
- MPN:
- FS608
- Type:
- Fast Ethernet Switch
- SKU:
- 21223
- Number of Ports:
- 8
- Port Speed:
- 10/100 Mbps
- Connector Type:
- RJ45
- Management Type:
- Unmanaged
- Form Factor:
- Desktop
- Switching Standard:
- IEEE 802.3, IEEE 802.3u
- Country/Region of Manufacture:
- China
- Seller Notes:
- No AC adapter included.
- Condition:
- Used – Pulled from Working Environment
- Condition Notes:
- Netgear FS608 8-Port Fast Ethernet Switch in good used condition. Pulled from a working environment. Light cosmetic wear. No AC adapter included. All 8 RJ45 ports intact.
$18.00Was: $40.00 -
Dowty Information Systems 7055005 CSU/DSU V.35 External T1 Modem 115VAC
Dowty Information Systems
$65.00Was: $125.00Dowty Information Systems 7055005 CSU/DSU V.35 External T1 Modem 115VACExternal CSU/DSU modem that converts T1 line signals to V.35 DTE interface. Operates at T1 data rate of 1.544 Mbps and connects mainframe or minicomputer systems to T1 carrier...21063- SKU:
- 21063
- Availability:
- Usually ships within 1–2 business days.
- Weight:
- 9.00 LBS
- Brand:
- Dowty Information Systems
- Model:
- 7055005
- MPN:
- 7055005
- Type:
- External CSU/DSU Modem
- SKU:
- 21063
- Interface Type:
- V.35
- Network Interface:
- T1 — screw-terminal (TX: T1/R1, RX: T/R)
- DTE Interface:
- V.35 (34-pin Winchester connector)
- Power Requirements:
- 115VAC, 0.5A fuse
- Form Factor:
- Desktop / External
- Connector Type:
- V.35 Winchester (DTE); screw terminals (T1 line)
- Data Rate:
- T1 1.544 Mbps
- Front Panel Indicators:
- TXD, RXD, RTS, CTS, DTR, DSR, LSD, TST, CWR, RLS, NIS LEDs
- Country/Region of Manufacture:
- United States
- Condition:
- Used – Pulled from Working Environment
- Seller Notes:
- Includes AC power cord. Pulled from a working environment.
- Condition Notes:
- Dowty Information Systems 7055005 CSU/DSU V.35 T1 modem. Inspected, in good used condition. Pulled from a working environment. Light surface wear on enclosure. V.35 port and T1 terminals appear clean. AC cord included.
$65.00Was: $125.00 -
Cisco WS-C2924XL 24-Port 10/100 Managed Fast Ethernet Switch 1U Rackmount
Cisco Systems
$20.00Was: $40.00Cisco WS-C2924XL 24-Port 10/100 Managed Fast Ethernet Switch 1U RackmountA managed Layer 2 Fast Ethernet switch from Cisco's Catalyst 2900XL series. This unit provides 24 ports of 10/100 Mbps connectivity plus 2 uplink ports, designed for enterprise and...20843- SKU:
- 20843
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 15.00 LBS
- Brand:
- Cisco
- Model:
- WS-C2924XL
- MPN:
- WS-C2924XL
- Type:
- Managed Fast Ethernet Switch
- SKU:
- 20843
- Condition:
- As-Is / For Parts or Not Working
- Series:
- Catalyst 2900XL
- Number of Ports:
- 24
- Port Speed:
- 10/100 Mbps (Fast Ethernet)
- Management Type:
- Managed
- Form Factor:
- 1U Rack Mount
- Compatible Rack Size:
- 19-inch
- Interface Type:
- RJ-45 10/100 Ethernet
- Console Port:
- Yes — RJ-45 console port (rear panel)
- Uplink Ports:
- 2 x Fast Ethernet uplink ports (rear)
- RPS Support:
- Yes — Redundant Power Supply port present
- Rack Ears Included:
- Yes
- Seller Notes:
- Sold as-is for parts. Cracked front-right corner plastic. Rack ears attached.
- Country/Region of Manufacture:
- United States
- Condition Notes:
- Cisco WS-C2924XL 24-port switch has a cracked front-right corner plastic housing. Sold as-is for parts or repair — not tested, no functionality guarantee. Rack ears attached.
$20.00Was: $40.00 -
ADC Kentrox D-SERV 56 DSU/CSU 78285 EIA-232 V.35 56Kbps No Power Supply
ADC Kentrox
$35.00Was: $70.00ADC Kentrox D-SERV 56 DSU/CSU 78285 EIA-232 V.35 56Kbps No Power SupplyA Data Service Unit/Channel Service Unit for converting between DTE devices and leased-line WAN connections. The D-SERV 56 handles synchronous data transmission over dedicated...20823- SKU:
- 20823
- Availability:
- Usually ships within 1–2 business days.
- Weight:
- 2.00 LBS
- Brand:
- ADC Kentrox
- Model:
- D-SERV 56
- MPN:
- 78285
- Type:
- DSU/CSU (Data Service Unit / Channel Service Unit)
- SKU:
- 20823
- Condition:
- Used – Inspected
- Seller Notes:
- No power supply included. Unit only.
- Interface Type:
- EIA-232, V.35
- Data Rate:
- Up to 56 Kbps
- DTE Rates Supported:
- 64, 56, 38.4, 19.2, 9.6, 4.8, 2.4 Kbps
- Connector Type:
- EIA-232 (DB-25), RJ-11 LINE port, IEC power inlet
- Power Requirements:
- AC 12VCT, 500mA MAX (external power supply required)
- TX Clock Source:
- Internal (INT) or External (EXT), configurable via DIP switch
- Loopback Modes:
- Local Loopback, Remote Loopback, Test Pattern
- Configuration Method:
- DIP switch (SW1–SW10 on bottom panel)
- Form Factor:
- Desktop / Standalone
- FCC Registration No.:
- F8USA-22265-DE-N
- Standards Compliance:
- FCC Part 15, FCC Part 68, RINGER EQUIV. 0.0B
- Country/Region of Manufacture:
- United States
- Condition Notes:
- ADC Kentrox D-SERV 56 DSU/CSU 78285 inspected, appears in good used condition. Clean enclosure, minor surface wear. No power supply included — requires external AC 12VCT 500mA supply.
$35.00Was: $70.00 -
Racal 27C522-02 25-Pin Male to 34-Pin Female DSU CSU Modem Adapter DB25 IDC
Racal
$35.00Was: $70.00Racal 27C522-02 25-Pin Male to 34-Pin Female DSU CSU Modem Adapter DB25 IDCThe Racal 27C522-02 is a passive interface adapter that converts a 25-pin DB25 male connector to a 34-pin female IDC connector for use with DSU/CSU modem equipment. It was...19841- SKU:
- 19841
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 3.00 LBS
- Brand:
- Racal
- Model:
- 27C522-02
- MPN:
- 27C522-02
- Type:
- DSU/CSU Modem Interface Adapter
- SKU:
- 19841
- Connector A (Male):
- DB25 (25-Pin D-Sub Male)
- Connector B (Female):
- 34-Pin IDC Female
- Gender:
- Male to Female
- Compatible With:
- Racal DSU/CSU Modems and Datacom Equipment
- Interface Type:
- RS-232 / DSU/CSU Modem
- Form Factor:
- Inline Adapter
- Condition:
- Used – Inspected and in Good Condition
- Seller Notes:
- Adapter only; no cables included.
- Country/Region of Manufacture:
- United Kingdom
- Condition Notes:
- Racal 27C522-02 DSU/CSU modem adapter. Inspected and in good condition. DB25 and 34-pin IDC connector pins appear clean and intact. Light surface wear on housing.
$35.00Was: $70.00 -
Bay Networks SYNC 5280 Quad Port Synchronous Serial Network Plug-In Card
Bay Networks
$75.00Was: $150.00Bay Networks SYNC 5280 Quad Port Synchronous Serial Network Plug-In CardA four-port synchronous serial network interface card designed for Bay Networks routers and access platforms. Provides four independent DB-25 serial connections for synchronous data...19780- SKU:
- 19780
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 3.00 LBS
- Brand:
- Bay Networks
- Model:
- SYNC 5280
- MPN:
- SYNC 5280
- Type:
- Quad Port Synchronous Serial Network Plug-In Card
- SKU:
- 19780
- Number of Ports:
- 4
- Interface Type:
- Synchronous Serial
- Form Factor:
- Plug-In Card / Module
- Connector Type:
- DB-25 (4x front-panel serial connectors)
- Compatible With:
- Bay Networks routers and access platforms
- Condition:
- Used – Pulled from Working Environment
- Seller Notes:
- Board only; no cables or accessories included.
- Country/Region of Manufacture:
- United States
- Condition Notes:
- Bay Networks SYNC 5280 Quad Port Sync Serial card inspected and in good used condition. Pulled from a working environment where it was in active use. No visible damage. Board only.
$75.00Was: $150.00