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.

Nokia 7210 SAS-K ETR Carrier-Grade Service Access Switch
The Nokia 7210 SAS-K ETR is a certified refurbished carrier-grade service access switch/router featuring Nokia's programmable datapath silicon, available in three models with system throughput ranging from 5 Gb/s to 30 Gb/s wire speed (full duplex IMIX), operating temperature range of -40°C to +65°C, multiple network interfaces including SFP/SFP+ ports and combo RJ-45 Gigabit Ethernet ports, comprehensive IP/MPLS/Ethernet transport capabilities, and enhanced environmental certifications for power substations and railway deployments. This professional-grade networking solution delivers secure Carrier Ethernet connectivity with advanced routing protocols, deep buffer memory for burst absorption, and passive fanless cooling, making it ideal for network demarcation in enterprise business services, wholesale carrier networks, and mobile anyhaul applications where reliability and extended operating conditions are paramount.
Enterprise-Ready Network Performance
This certified refurbished Nokia 7210 SAS-K ETR series provides three performance tiers to match your specific deployment requirements. The K30 ETR model delivers 30 Gb/s throughput with 512 MB buffer memory and features three SFP+ 10GE ports plus eight combo SFP/RJ-45 Gigabit ports. The K12 ETR offers 9 Gb/s throughput with 64 MB buffer memory and twelve network interfaces combining SFP and Gigabit Ethernet connectivity. The K5 ETR provides 5 Gb/s throughput optimised for compact edge deployments with five total network interfaces. All models support ITU-T SyncE with Ethernet Synchronisation Messaging Channel and IEEE 1588v2 precision timing protocols, ensuring accurate network synchronisation for carrier-grade applications.
Advanced Layer 2 and IP/MPLS Services
The Nokia 7210 SAS-K ETR series runs the proven Service Router Operating System (SR OS), delivering comprehensive networking capabilities across all three models. Layer 2 services include Virtual Private LAN Service (VPLS), Virtual Leased Line (VLL), IEEE 802.1Q VLAN and 802.1ad QinQ tagging, Link Aggregation Groups, and ITU-T G.8032v2 Ethernet ring protection. The K30 and K12 ETR models additionally support full IP/MPLS routing with Segment Routing, MPLS Label Edge Router and Label Switch Router functions, BGP/OSPF/IS-IS protocols, IP VPN services for both IPv4 and IPv6, and multi-chassis LAG for enhanced redundancy. All units provide hierarchical quality of service with per-service ingress and egress policing, deep buffering to absorb traffic bursts, and comprehensive OAM capabilities including IEEE 802.1ag and ITU-T Y.1731 Ethernet OAM.
Operating System Advantages
The Nokia Service Router Operating System (SR OS) offers significant advantages for carrier and enterprise networks, including proven stability across thousands of global deployments, seamless integration with Nokia's broader routing portfolio, and comprehensive support for modern networking protocols. SR OS provides automated configuration capabilities, remote upgrade functionality, and extensive NETCONF/YANG programmability for software-defined networking environments. However, the operating system requires specialised networking knowledge to configure and manage effectively, may have a steeper learning curve compared to consumer-grade network equipment, and typically requires familiarity with carrier-grade networking concepts and protocols.
Technical Specifications
- System Throughput: K30 ETR: 30 Gb/s | K12 ETR: 9 Gb/s | K5 ETR: 5 Gb/s (full duplex, IMIX)
- Buffer Memory: K30 ETR: 512 MB | K12/K5 ETR: 64 MB (ingress/egress)
- Network Transport: IP/MPLS/Ethernet (K30/K12) | Ethernet (K5)
- Operating Temperature: -40°C to +65°C (-40°F to +149°F) all models
- Power Input: AC 100-240V 50-60Hz | DC -18V to -72V (K30) | DC -36V to -72V or +20V to +28V (K12/K5)
- Dimensions K30: 8.8 cm H × 43.8 cm W × 25.2 cm D (2RU rack mount)
- Dimensions K12: 6.6 cm H × 33.9 cm W × 24.0 cm D (1.5RU rack mount)
- Dimensions K5: 4.1 cm H × 18.4 cm W × 21.8 cm D (1RU rack mount)
- Cooling: Passive fanless design for silent operation
- Certifications: NEBS Level 3, IEC 61850-3, IEEE 1613, EN 50121-4, MEF 3.0 Carrier Ethernet
Comprehensive Operations and Security
The 7210 SAS-K ETR series includes extensive operations, administration, and maintenance features essential for carrier-grade deployments. IEEE 802.3ah Ethernet in the First Mile with Dying Gasp support ensures network visibility during power failures. ITU-T Y.1564 test head functionality enables multi-stream service activation testing. Two-Way Active Measurement Protocol (TWAMP) provides accurate latency and jitter measurements with PTP-based timestamps for SLA verification. Security capabilities include SSH v4/v6 for encrypted management access, IEEE 802.1x port-based authentication, control plane security with management access filters, RADIUS and TACACS+ authentication support, and comprehensive access control lists. The K30 ETR model additionally features MACsec encryption for securing Ethernet connections.
Verified Reboot Refurb Quality
This certified refurbished Nokia 7210 SAS-K ETR has been thoroughly verified through Reboot IT's comprehensive testing process using cutting-edge diagnostic software. Every unit undergoes complete functional testing of all network interfaces, routing protocols, quality of service features, timing synchronisation, and management capabilities to ensure professional-grade operation. Since 2001, Reboot IT has been Australia's trusted expert in refurbishing enterprise networking equipment, bringing over two decades of industry knowledge to every device. Our technicians have tested all features and functions of this switch to guarantee it performs to Nokia's original specifications, providing the same reliability you would expect from new equipment at a fraction of the cost.
Cosmetic Condition Grades
Network switches in Excellent grade show minimal signs of previous use with no deep scratches, cracks, paint chips, or broken pieces on the housing or port panels. Good grade units remain fully tested and functional but may display more visible cosmetic wear including light scratches on the external body, minor dings or dents on the chassis, or small paint chips on the surface. Regardless of cosmetic grade, all refurbished Nokia 7210 SAS-K ETR switches undergo identical rigorous testing procedures and deliver the same carrier-grade performance and reliability.
Quality Assurance and Warranty
Every certified refurbished Nokia 7210 SAS-K ETR is sold by Reboot IT with a comprehensive 1-year warranty, providing you with confidence and protection for your investment. This warranty covers the functionality and performance of all network interfaces, routing capabilities, and system operations. Our thorough refurbishment process includes secure data wiping, comprehensive diagnostic testing with specialised networking equipment, and verification of all hardware components and software features. Each unit is professionally cleaned, carefully graded for cosmetic condition, and shipped ready for immediate deployment in your network infrastructure.
Sustainable Technology Choice
Choosing a certified refurbished Nokia 7210 SAS-K ETR supports environmental sustainability by extending the lifecycle of professional networking equipment and reducing electronic waste. Refurbished carrier-grade switches consume significantly less resources than manufacturing new units, helping decrease carbon emissions and conserve raw materials. With Reboot IT's verified refurbishment process, you receive professional-grade networking performance whilst contributing to a circular economy and responsible technology consumption.
Upgrade your network infrastructure today with this certified refurbished Nokia 7210 SAS-K ETR – delivering carrier-grade performance, proven reliability, and exceptional value backed by Reboot IT's 1-year warranty.
| 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












