Please allow ~2-3 weeks to dispatch for quality control. Product images are for illustrative purposes only and may contain AI-generated content; they may not represent the final product you receive. Products are subject to the cosmetic grading policy detailed here.
If you are ordering a device that does not include a Windows 11 licence as standard, please check Microsoft's minimum system requirements to confirm if it can be upgraded later should you wish to do so.
Certified Refurbished HPE FlexNetwork 5510 24G 4SFP+ HI 1-Slot Switch (JH145A) - Enterprise-Grade Layer 3 Network Solution
The HPE FlexNetwork 5510 24G 4SFP+ HI 1-slot Switch (JH145A) delivers enterprise-class networking performance with 24 Gigabit Ethernet ports, 4 SFP+ 10GbE uplinks, 288 Gb/s switching capacity, 214 Mpps throughput, and weighs 7.5 kg with dimensions of 44.00 x 36.00 x 4.37 cm. This certified refurbished Layer 3 switch provides outstanding resiliency, security, and multiservice support for medium to large enterprise networks, data centres, campus deployments, and SMB core networking environments.
Ideal Network Applications
This versatile managed switch excels in demanding enterprise environments where reliability and performance are critical. Deploy it as an edge layer solution in data centres requiring high-density Gigabit connectivity with 10GbE uplinks, or utilise it as the core networking backbone for small to medium business infrastructures. The switch's Intelligent Resilient Fabric (IRF) capability with 9-chassis stacking and up to 160 Gbps stacking bandwidth makes it perfect for organisations planning network growth and requiring simplified management across multiple units. It's particularly well-suited for businesses transitioning from IPv4 to IPv6 networks, thanks to complete protocol support and MPLS/VPLS features.
Key Features and Benefits
Enterprise-Class Performance
This refurbished switch delivers exceptional throughput with 288 Gb/s switching capacity and 214 Mpps packet forwarding, ensuring your network handles bandwidth-intensive applications without bottlenecks. The ultra-low latency of less than 5 μs for Gigabit connections and less than 3 μs for 10 Gbps ensures responsive network performance.
Flexible Connectivity Options
Connect up to 24 devices via autosensing 10/100/1000 RJ-45 ports with Auto-MDIX support, plus leverage 4 built-in SFP+ 10GbE ports for high-speed uplinks. The expansion module slot accommodates up to 6 additional SFP+ ports, 2 1/10GBASE-T ports, or 2 40GbE ports for future scalability.
Enhanced Security with MACSec
Ports 1-8 feature hardware-based MACSec encryption, providing enterprise-grade security for sensitive data transmission at the hardware level without compromising performance.
Comprehensive Management
Multiple management interfaces include a dual-personality console port (RJ-45 or USB micro-B), dedicated out-of-band management port, and USB 2.0 port for flexible configuration and monitoring options.
Protocol and Standards Compliance
Full IPv4/IPv6 support, OpenFlow capabilities, and MPLS/VPLS features ensure seamless integration into modern enterprise networks and protect your investment during network transitions.
Redundant and Reliable Architecture
Dual fan trays and support for dual redundant power supplies ensure maximum uptime and reliability for mission-critical network operations.
Essential Technical Specifications
- Ports: 24 x RJ-45 autosensing 10/100/1000 Gigabit Ethernet + 4 x SFP+ 10GbE + 1 expansion slot
- Switching Capacity: 288 Gb/s with 214 Mpps throughput
- MAC Address Table: 32,768 entries
- Routing Table: 32,768 IPv4 entries / 16,384 IPv6 entries
- Latency: <5 μs (1000 Mb) / <3 μs (10 Gbps)
- Power Consumption: Maximum 107 W / Idle 55 W
- Voltage: 100-240 VAC (50/60 Hz) or -48 to -60 VDC
- Dimensions: 44.00 x 36.00 x 4.37 cm (17.32 x 14.17 x 1.72 in)
- Weight: 7.5 kg (16.53 lb)
- Model Number: JH145A
Certified Refurbishment and Quality Assurance
At Reboot IT, every HPE FlexNetwork 5510 switch undergoes our rigorous refurbishment and certification process, backed by over two decades of industry expertise since 2001. Using cutting-edge testing software and advanced diagnostic tools, our qualified technicians thoroughly test all features and functions to ensure each unit meets enterprise performance standards. All data is securely wiped, and the switch is restored to factory defaults. Every port, uplink, and management interface is verified through comprehensive functional testing. The unit is professionally cleaned, inspected for any physical defects, and graded according to our strict quality standards. All certified refurbished switches are verified through Reboot IT's thorough testing process before being approved for resale.
Understanding Cosmetic Grades:
While this device is available in Excellent and Good grades, both grades deliver identical performance and functionality. Excellent grade units show minimal signs of previous use with only light cosmetic wear, whilst Good grade units may display moderate cosmetic imperfections such as minor scratches or scuffs on the chassis. All units, regardless of cosmetic grade, undergo the same rigorous functional testing and perform to the same enterprise standards.
Warranty and Support
This certified refurbished HPE FlexNetwork 5510 switch is sold by Reboot IT with a comprehensive 1-year warranty covering all hardware defects and workmanship issues during normal operation. Our warranty demonstrates our confidence in the quality and reliability of our refurbishment process. Should any technical issues arise, our experienced support team is ready to assist with repair or replacement to keep your network running smoothly.
Ready to Upgrade Your Network Infrastructure?
Experience enterprise-grade networking performance without the enterprise price tag. This certified refurbished HPE FlexNetwork 5510 24G 4SFP+ HI Switch delivers the reliability, security, and scalability your business needs whilst supporting sustainable technology reuse. Add to cart today and benefit from Reboot IT's trusted quality, comprehensive warranty coverage, and expert support for your mission-critical network infrastructure.
| Manufacturer Warranty | 3 Months |
| Number Of Lan Ports | 24 |
| Maximum Lan Data Rate | 1 Gbps |
| Item Height | 43 mm |
| Maximum Data Transfer Rate | 1 Gbps |
| Custom Bundle | No |
| Network Connectivity | Wired-Ethernet (RJ-45) |
| Item Width | 440 mm |
| Ethernet Technology | Gigabit Ethernet (1000-Mbit/s) |
| Model | J9983A |
| Layer | 2 |
| Type | Ethernet Switch |
| Network Type | Local Area Network (LAN) |
| Network Management Type | Unmanaged |
| Processor Model | none |
| Supported Wireless Protocols | None |
| Number Of Wan Ports | None |
| Device Connectivity | None |
| Interface | Ethernet (RJ-45) |
| Connector Type | Ethernet Switch |
| Raid Levels | None |
| Item Length | 300 mm |
Refurbished Computers - Cosmetic Grading Guide
Our supplier's refurbished hardware is typically graded either "Excellent" or "Good", however, some legacy products were graded under a letter grading system (A, B, C). Please find the definitions for each grade below and contact us if you're uncertain of a device's grade.
Used Smartphone / Refurbished Mobile Phones
"Excellent" Grade
Devices in this category appear like new, with very minor wear. Expect light or fine scratches on the screen that are shallow enough not to catch on a fingernail. The edge around the glass is virtually flawless, save for possible light scratching around the power port. The back plate may show light/fine scratches, including on the Apple logo, with any discoloration being minimal.
"Good" Grade
These devices are characterized by being fully tested and functional even if they have body scratches, minor paint chips, or a small hairline crack on the screen. Screens are free from dead pixels but may exhibit slight scratching from moderate use.
Refurbished Desktops, Laptops and Monitors
"Excellent" Grade - Laptops
Reserved for units that show barely any signs of previous use, these laptops may exhibit very minor scuffing or abrasions, associated only with minimal standard use. The keyboards show light wear, and importantly, the screens are pristine, free from any scratches, cracks, chips, dead pixels, dark spots, discoloration, or blemishes.
"Excellent" Grade - Desktops
Desktop PCs in the "Excellent" grade category are free from deep scratches, cracks, paint chips, or any broken/missing pieces, ensuring a sleek and almost-new aesthetic.
"Excellent" Grade - Monitors
"Excellent" grade is reserved for units that show evidence of very little to no previous use. Any wear on an "Excellent" Display, including housing/frame and/or external surfaces (i.e. Frame) is associated with standard minimal use. "Excellent" units may have minor scuffing and / or minor abrasions on plastics with from standard light previous use."Excellent" Displays will feature no scratches, cracks, chips, dead pixels, dark spots, discoloration or blemishes. Units will only feature the standard minimal wear and tear that is associated with a used unit.
"Good" Grade - Laptops
"Good" laptops may feature one or several small dings or dents on covers and / or small paint chips on the surface or small hairline cracks in the bezel. Laptop screens may feature uneven light diffusion in screen and may feature subtle blemishes. "Good" Laptops will not feature cracks screens but may feature slight scratching, dead pixels or white spots on the screen.
"Good" Grade - Desktops
"Good" grade desktops may have light scratches on external body and may feature more excessive unit housing and/or external case wear than "Excellent" units, including wear on case / lid. "Good" PCs may feature one or several small dings or dents on covers and / or small paint chips on the surface.
"Good" Grade - Monitors
Displays in the "Good" grade have been fully tested and are functional but may include scratches on body, small paint chips, minor cracks on body, loose and/or wobbly bases. "Good" Display screens may feature uneven light diffusion in screen and may feature subtle to moderate blemishes. "Good" Displays will not feature cracks on screens but may feature slight scratching on screen surfaces from moderate use or wear, dead pixels or white spots on the screen.
Legacy letter grading
Used Smartphone / Refurbished Mobile Phones
A Grade
- No chips, scratches or cracks on the front glass and housing
- No missing or alternative parts
- No sign of liquid damage
- Battery cannot be swollen
B Grade – Same as A Grade except:
- May have light scuffs but no chips or cracks
- Light scratches on housing or front glass
C-Grade – Same as B Grade except:
- Unlimited long shallow scratches on the front glass
- No chips or cracks on the front glass
- Unlimited scratches, chips/dents on back cover housing and corners
- Minor cracks allowed
- Customized housing and aftermarket covers allowed
Refurbished Desktops, Laptops and Monitors
A-Grade
- Overall excellent to very good cosmetic condition. Some may be pristine, others may have light scratches or minor blemishes
- Laptops may have some shiny areas around the keyboard such as the space bar, touchpad or touchpad buttons
- Keyboard keys will be in excellent condition
- Laptop and monitor screens will be blemish free
- Cosmetic blemishes will not impact the overall functionality or performance of the device
B-Grade
- Will have some cosmetic blemishes that include scratches and/or other imperfections
- Minor scratches and dents on the housing
- Laptops may have shiny keys or shiny surfaces around the keyboard however all characters will be legible
- Laptop and monitors screens will have imperfections such as minor scratches, minor chips and/or white spots. There will be no cracking on the screen
- Have the same warranty as A Grade
- Pricing will be cheaper than A Grade
C-Grade
- Same as B-Grade except may have unlimited scratches/blemishes on the screen
- May have cracks/chips or dents on the housing
- Have the same warranty as A Grade
- Pricing will be cheaper than B Grade
