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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Accton EN2010 EtherRepeater-II 10Base-T Ethernet Repeater Hub AUI BNC 2-Segment
Accton
$35.00Was: $70.00Accton EN2010 EtherRepeater-II 10Base-T Ethernet Repeater Hub AUI BNC 2-Segment10Base-T Ethernet repeater hub designed to extend network segments across two ports. Functions as an unmanaged repeater for legacy 10 Mbps Ethernet networks using 10Base-T,...24605- SKU:
- 24605
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 10.00 LBS
- Brand:
- Accton
- Model:
- EN2010
- MPN:
- EN2010
- Type:
- 10Base-T Ethernet Repeater Hub
- SKU:
- 24605
- Condition:
- As-Is / For Parts or Not Working
- Seller Notes:
- Sold as-is for parts or repair. No functionality guarantee.
- Country/Region of Manufacture:
- Taiwan
- Form Factor:
- Rackmount / Desktop, 1U
- Number of Segments:
- 2
- Interface Type:
- AUI, BNC (10Base2), 10Base-T
- Network Standard:
- 10Base-T, 10Base2 (Coax), IEEE 802.3
- Data Rate:
- 10 Mbps
- Connector Type:
- AUI (DB15), BNC, IEC AC inlet
- LED Indicators:
- TX, COL, RX per segment; PWR, Jabber, Fault, Partition
- Management Type:
- Unmanaged
- Compatible With:
- 10Base-T Ethernet networks, IEEE 802.3 equipment
- Condition Notes:
- Accton EN2010 EtherRepeater-II sold as-is for parts or repair. Not tested, no functionality guaranteed. Chassis intact; sold in current condition. Please view photos and contact us with questions.
$35.00Was: $70.00 -
SonicWALL Pro Internet Security Appliance Firewall 1U Rackmount LAN DMZ WAN
Sonicwall 1
$40.00Was: $80.00SonicWALL Pro Internet Security Appliance Firewall 1U Rackmount LAN DMZ WANNetwork security appliance designed to protect enterprise networks through firewall capabilities and threat detection. 1U rackmount form factor for data center deployment...38870- SKU:
- 38870
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 7.00 LBS
- Brand:
- SonicWALL
- Model:
- Pro
- MPN:
- Pro
- Type:
- Internet Security Appliance / Firewall
- SKU:
- 38870
- Condition:
- As-Is / For Parts or Not Working
- Seller Notes:
- Sold AS-IS for parts or repair. No functionality guaranteed.
- Form Factor:
- 1U Rackmount
- Number of Ports:
- 3 x RJ-45 10/100 (LAN, DMZ, WAN) + 1 Serial
- Interface Type:
- 10/100 Ethernet, Serial (DB9)
- Connector Type:
- RJ-45, DB9 Serial, IEC AC Inlet
- Management Type:
- Managed
- LAN Ports:
- 1 x 10/100 RJ-45
- DMZ Ports:
- 1 x 10/100 RJ-45
- WAN Ports:
- 1 x 10/100 RJ-45
- Serial Console:
- DB9 Serial Port
- Country/Region of Manufacture:
- United States
- Condition Notes:
- SonicWALL Pro Internet Security Appliance sold AS-IS for parts or repair. Not tested, no functionality guaranteed. Chassis intact; cosmetic wear around rack ears and top panel. Review photos carefully.
$40.00Was: $80.00 -
Black Box LE401A 8-Port DB-15 Fanout Switch Ethernet Transceiver 90-270VAC
Black Box
$60.00Was: $125.00Black Box LE401A 8-Port DB-15 Fanout Switch Ethernet Transceiver 90-270VACAn 8-port AUI fanout switch designed to distribute Ethernet signals across multiple DB-15 AUI connections. Supports 90–270VAC auto-sensing power input and includes front-panel...42857- SKU:
- 42857
- Availability:
- Usually ships within 1–2 business days.
- Weight:
- 4.00 LBS
- Brand:
- Black Box
- Model:
- LE401A
- MPN:
- LE401A
- Hardware Revision:
- Rev A
- Type:
- 8-Port DB-15 AUI Fanout Switch
- Number of Ports:
- 8
- Connector Type:
- DB-15 (AUI)
- Interface Type:
- AUI / DB-15
- Power Requirements:
- 90–270VAC Auto-Sensing
- Form Factor:
- Desktop
- Front Panel Indicators:
- System Power, Remote TX/RX/Collision, Local RX/Collision, SQE, Transmit per port
- Missing Components:
- MODE switch (Remote/Local) and SQE switch (On/Off) are missing
- Certifications:
- UL Listed (8J59), FCC Class A
- Country/Region of Manufacture:
- United States
- Condition:
- Used – Powers On; Missing MODE and SQE switches
- SKU:
- 42857
- Seller Notes:
- Unit powers on. Missing MODE (Remote/Local) and SQE (On/Off) switches.
- Condition Notes:
- Black Box LE401A 8-Port DB-15 Fanout Switch powers on. Missing the MODE (Remote/Local) and SQE (On/Off) front-panel switches. Chassis shows normal use wear. All 8 DB-15 AUI ports present. Sold as-is regarding missing switches.
$60.00Was: $125.00 -
SMC ZSE4E-01-27 Vacuum Pressure Switch 12-24VDC NPN -101 kPa Pneumatic
SMC
$40.00Was: $80.00SMC ZSE4E-01-27 Vacuum Pressure Switch 12-24VDC NPN -101 kPa PneumaticThe SMC ZSE4E-01-27 is a compact digital vacuum pressure switch from SMC Corporation's ZSE4 series. It monitors vacuum levels in pneumatic systems and provides two NPN transistor...48132- SKU:
- 48132
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 1.00 LBS
- Brand:
- SMC
- Model:
- ZSE4E-01-27
- MPN:
- ZSE4E-01-27
- Type:
- Vacuum Pressure Switch
- SKU:
- 48132
- Voltage Rating:
- 12-24VDC
- Output Type:
- NPN (2 outputs)
- Output 1:
- NPN, 30V, 80mA (Black wire)
- Output 2:
- NPN, 30V, 80mA (White wire)
- Max Pressure:
- -101 kPa (-760 mmHg)
- Wire Colors:
- Brown (+), Black (OUT1), White (OUT2), Blue (GND)
- Display:
- Integrated digital display
- Port Size:
- M5 (visible on bottom port)
- Country/Region of Manufacture:
- Japan
- Condition:
- Used – Inspected
- Seller Notes:
- Unit only with attached cable. No additional accessories included.
- Application:
- Pneumatic vacuum detection, industrial automation
- Series:
- ZSE4 Series
- Condition Notes:
- SMC ZSE4E-01-27 Vacuum Pressure Switch inspected and in good used condition. Housing shows rust staining and discoloration; cable intact. Digital display and pushbuttons present. Port appears clean.
$40.00Was: $80.00 -
HP J4121A ProCurve Switch 4000M 5x J4111A 10/100Base-T Modules Rackmount
HP
$75.00Was: $150.00HP J4121A ProCurve Switch 4000M 5x J4111A 10/100Base-T Modules RackmountThe HP ProCurve Switch 4000M (J4121A) is a modular, managed 10/100 Ethernet switch chassis designed for enterprise wiring closet and data center deployments. This listing includes...47108- SKU:
- 47108
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 30.00 LBS
- Brand:
- HP (Hewlett-Packard)
- Model:
- J4121A
- MPN:
- J4121A
- Secondary Model:
- J4111A
- Type:
- Managed Modular Ethernet Switch
- SKU:
- 47108
- Series:
- HP ProCurve Switch 4000M
- Number of Ports:
- 100 (5x J4111A modules, 24 ports each = 100 ports)
- Port Speed:
- 10/100Base-T
- Management Type:
- Managed
- Form Factor:
- Rackmount
- Connector Type:
- RJ-45
- Power Requirements:
- 100-127VAC 2.0A / 200-240VAC 1.0A, 50/60Hz
- Included Modules:
- 5x HP J4111A 10/100Base-T Modules
- Power Supply:
- HP ProCurve Switch 4000M/8000M Power Supply (included)
- Console Port:
- DB-9 Serial Console Port
- Compatible With:
- HP ProCurve Switch 4000M / 8000M chassis
- Seller Notes:
- Includes 5x J4111A 10/100Base-T modules and ProCurve 4000M/8000M power supply
- Condition:
- Used – Pulled from Working Environment
- Country/Region of Manufacture:
- United States
- Condition Notes:
- HP J4121A ProCurve Switch 4000M with 5x J4111A modules inspected and in good used condition. Pulled from a working environment where it was functional. Includes power supply.
$75.00Was: $150.00 -
HP ProCurve Switch 2524 J4813A 24-Port 10/100 Rackmount Managed Ethernet Switch
HP
$50.00Was: $100.00HP ProCurve Switch 2524 J4813A 24-Port 10/100 Rackmount Managed Ethernet SwitchThe HP ProCurve Switch 2524 (J4813A) is a 24-port managed Fast Ethernet switch designed for small to mid-sized business networks. It provides 24 auto-sensing 10/100 Mbps RJ-45...45644- SKU:
- 45644
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 7.00 LBS
- Brand:
- HP (Hewlett-Packard)
- Model:
- ProCurve Switch 2524
- MPN:
- J4813A
- SKU:
- 45644
- Type:
- Managed Ethernet Switch
- Number of Ports:
- 24
- Port Speed:
- 10/100 Mbps (Fast Ethernet)
- Management Type:
- Managed
- Connector Type:
- RJ-45
- Console Port:
- DB-9 Serial (RS-232)
- Form Factor:
- 1U Rackmount
- Power Requirements:
- 100-127V~2.4A / 200-240V~1.2A, 50/60Hz
- Dual Voltage:
- Yes — 100-240V universal input
- Network Protocol:
- IEEE 802.3, 802.3u
- Country/Region of Manufacture:
- Taiwan
- Condition:
- Used – Inspected and Tested
- Seller Notes:
- Unit only; no additional accessories included.
- Compatible With:
- Standard 19-inch EIA rackmount cabinets
- Condition Notes:
- HP ProCurve Switch 2524 J4813A has been tested and is in good working condition. Powers on, LEDs function normally. Light cosmetic wear from rack use. Please contact us with any questions.
$50.00Was: $100.00 -
Wellfleet Communications 75040 BCN Backbone Concentrator Node Server 200-240V
Wellfleet
$450.00Was: $900.00Wellfleet Communications 75040 BCN Backbone Concentrator Node Server 200-240VBackbone Concentrator Node (BCN) chassis designed for routing and network concentration in enterprise telecommunications environments. The 75040 functions as a modular...45491- SKU:
- 45491
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 131.00 LBS
- Brand:
- Wellfleet Communications
- Model:
- 75040
- MPN:
- 104950
- Secondary Model:
- BCN
- Hardware Revision:
- Rev M
- Type:
- Backbone Concentrator Node Communications Server Chassis
- SKU:
- 45491
- Form Factor:
- Freestanding / Tower Chassis
- Power Requirements:
- 200-240V AC, 50/60Hz, 13A
- Power Supply:
- Zytec 620W Hot-Swap Power Module P/N 22927480 Rev H
- Power Supply Input:
- 100-120/200-240V AC, 50/60Hz, Ph 1, 10/5A
- Power Supply Output:
- +5.2V/90A, +12.0V/10A, +12.0V/5A, -12.0V/1A
- Number of Slots:
- 14
- Compliance / Certification:
- VCCI-1, TUV
- Country/Region of Manufacture:
- United States
- Dimensions:
- 24 x 19 x 25 in
- Condition:
- Used – Pulled from Working Environment
- Seller Notes:
- Includes Zytec 620W hot-swap power module and power cable (locking 20A/250V plug)
- Condition Notes:
- Wellfleet 75040 BCN Backbone Concentrator Node chassis inspected and in good used condition, pulled from a working environment. Includes Zytec 620W hot-swap power module and locking power cable. Typical data center wear.
$450.00Was: $900.00 -
Allied Telesyn AT-3716TR CentreCOM 16-Port 10/100 Managed Ethernet Switch RJ-45
Allied Telesyn
$40.00Was: $100.00Allied Telesyn AT-3716TR CentreCOM 16-Port 10/100 Managed Ethernet Switch RJ-45A 16-port managed Ethernet switch designed for small to medium network deployments. Supports 10/100 Mbps connections across all ports with RJ-45 connectors and includes serial...45316- SKU:
- 45316
- Availability:
- Usually ships within 1–2 business days.
- Weight:
- 12.00 LBS
- Brand:
- Allied Telesyn
- Model:
- AT-3716TR
- MPN:
- AT-3716TR
- Product Line / Series:
- CentreCOM
- Type:
- Managed Ethernet Switch
- SKU:
- 45316
- Number of Ports:
- 16
- Port Speed:
- 10/100 Mbps (10BASE-T / 100BASE-TX)
- Connector Type:
- RJ-45
- Management Type:
- Managed
- Management Interface:
- DB-9 Serial Terminal Port
- Standards:
- IEEE 802.3 / Ethernet with 100BASE-TX Access
- Network Management:
- Yes
- Form Factor:
- Rackmount / Desktop, 1U
- Power Requirements:
- 100/240VAC, 50/60Hz, 1.0/0.5A
- Country/Region of Manufacture:
- United States
- Certifications:
- UL Listed (E148319), GS (K721859), CE, FCC
- Condition:
- As-Is / For Parts or Not Working
- Seller Notes:
- Sold as-is for parts or repair. No functionality guarantee.
- Condition Notes:
- Allied Telesyn AT-3716TR CentreCOM 16-Port Managed Switch sold AS-IS for parts or repair. Not tested; no functionality guarantee. Cosmetically appears intact. Please view photos and contact us with questions.
$40.00Was: $100.00