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.

DIGITECH COMPUTERS YN-8040 Gigabit PoE Injector
The DIGITECH COMPUTERS YN-8040 is a Gigabit Power over Ethernet (PoE) Injector delivering 52VDC at 0.67A with 35W maximum output power, featuring Gigabit network speed (1000 Mbps) with 1 x RJ45 Ethernet input and 1 x RJ45 PoE Ethernet output, measuring 118mm x 59mm x 37mm. This certified refurbished networking device enables seamless power delivery over Ethernet cables to PoE-compatible equipment such as IP cameras, IP phones, routers, and PoE lighting systems.
Practical Applications
This PoE injector is ideal for network installations where power outlets are unavailable or impractical near devices. It eliminates the need for separate power supplies for IP surveillance cameras in remote locations, powers wireless access points in ceiling-mounted positions, and supports VoIP phone deployments across offices. The device transmits both power and data through a single Cat5e or higher Ethernet cable, simplifying installations and reducing cable clutter whilst maintaining Gigabit network speeds up to 100 metres.
Key Features and Benefits
- Universal input voltage (100-240VAC) accommodates various power environments worldwide
- IEEE 802.3at (PoE+) and IEEE 802.3af (PoE) compliance ensures broad device compatibility and delivers up to 25.5W to powered devices
- Gigabit throughput maintains high-speed network performance without bandwidth compromise
- Plug-and-play operation requires no configuration or technical expertise
- Compact design (118 x 59 x 37mm) fits discreetly in confined spaces
Technical Specifications
- Input Voltage: 100-240VAC (universal)
- Output Voltage: 52VDC
- Output Current: 0.67A
- Maximum PoE Output Power: 35W
- Network Speed: Gigabit (1000 Mbps)
- Transmission Distance: Up to 100 metres
- Standards Compliance: IEEE 802.3at (PoE+), IEEE 802.3af (PoE)
- Product Dimensions: 118 x 59 x 37mm
- Packaged Weight: 0.44kg
- Ports: 1 x RJ45 Ethernet input, 1 x RJ45 PoE output
Quality Assurance and Warranty
This refurbished YN-8040 is Verified Reboot Refurb certified, confirming it has passed Reboot IT's comprehensive testing process using cutting-edge diagnostic software. Since 2001, Reboot IT has been an industry expert in refurbishing networking equipment, ensuring all features and functions operate reliably. Each unit undergoes thorough connectivity testing, power output verification, and port functionality checks before receiving certification.
This product is sold by Reboot IT with a comprehensive 1-year warranty covering all hardware defects in materials and workmanship. The warranty ensures peace of mind for your networking investment, with support available through Reboot IT's customer service team.
Cosmetic Grading
Excellent Grade: Units show evidence of very light previous use with minimal wear on housing and external surfaces, including only very minor scuffing or minor abrasions associated with minimal standard use.
Good Grade: Devices are fully tested and fully functional but may have more visible signs of previous use, including light scratches on the external body and more extensive housing or external case wear, with possible small dings, dents, or small paint chips on the surface.
Ready to simplify your network infrastructure? Add the certified refurbished DIGITECH COMPUTERS YN-8040 Gigabit PoE Injector to your cart today and experience reliable, cost-effective power delivery for your PoE-enabled devices with the confidence of Reboot IT's 1-year warranty.
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












