GFX5100-48S-3AFI — Juniper QFX5100-48S Platform, 48x SFP+ 10GbE + 6x QSFP+ 40GbE, AFI
Technical Identity
This unit is labeled GFX5100-48S-3AFI (label variants observed include GFX5100-485-3AFI). The GFX prefix could not be verified as an official Juniper ordering part number; the hardware corresponds to the Juniper QFX5100-48S platform — a 1U data center access switch with 48x 1/10GbE SFP/SFP+ ports and 6x QSFP+ 40GbE ports, 1.44 Tbps aggregate throughput, dual power supplies, and AFI (back-to-front) airflow. All platform specifications below are the published Juniper QFX5100-48S figures; identity should be confirmed against the unit label. Condition: Refurbished.
Specifications
Brand: Juniper Networks (platform); sold per unit label GFX5100-48S-3AFI
Label / SKU: GFX5100-48S-3AFI (label also reads GFX5100-485-3AFI)
Verified platform: Juniper QFX5100-48S
Product type: Layer 2/3 data center access switch
Access ports: 48x 1/10GbE SFP/SFP+
Uplink ports: 6x QSFP+ 40GbE (4x10GbE breakout documented by Juniper)
Aggregate throughput: 1.44 Tbps / 1.08 Bpps (per Juniper QFX5100 datasheet)
Control plane: dual-core 1.5 GHz Intel CPU, 8 GB RAM, 32 GB SSD (per datasheet)
Airflow: AFI — airflow in: FRU-side intake, port-side exhaust (back-to-front)
Power: dual hot-swappable power supplies
Form factor: 1U rack-mount
Operating system: Junos OS
Condition: Refurbished
Engineering Context
The QFX5100-48S is one of the most widely deployed 10GbE top-of-rack platforms: 48 dual-rate SFP+ access ports with six QSFP+ uplinks give a 2:1 oversubscription from access to aggregation, and each 40GbE port can be broken out into 4x 10GbE per Juniper documentation. The -3 prefix on the airflow suffix appears on later Juniper ordering variants of the platform; because the GFX-prefixed part number on this unit could not be matched to an official Juniper PID, T.E.S IT-SOLUTIONS describes and sells this unit strictly by the verified QFX5100-48S platform specification plus the label as found.
Use Cases
10GbE top-of-rack server access with 40GbE uplinks
Data center access tiers built on the QFX5100 platform
Lab, staging, and spare-chassis use where label-variant units are acceptable
Back-to-front (AFI) airflow rows where ports face the hot aisle
What This Is NOT
NOT verified as an official Juniper ordering PID under the GFX prefix. The unit is sold per its label; the verified hardware platform is the Juniper QFX5100-48S.
NOT the AFO (front-to-back) variant. AFI means FRU-side intake and port-side exhaust; match to your rack airflow design.
NOT the QFX5100-48T (RJ-45 copper) or QFX5100-24Q (all-QSFP+) models.
NOT a QSFP28 / 100GbE platform. Uplinks are QSFP+ 40G.
NOT supplied with transceivers, DAC cables, or rack accessories unless explicitly stated in the listing.
NO Juniper software licenses or support contracts are included or transferred.
Compatibility & Hard Constraints
Typical deployment: 10GbE server access with Juniper-qualified SFP/SFP+ and QSFP+ optics and DACs; verify against the QFX5100 hardware compatibility list.
Breakout: 40GbE-to-4x10GbE breakout is documented on the QFX5100 platform; verify port profiles for your Junos release.
Airflow: AFI (back-to-front) — do not mix with AFO units in the same airflow zone.
Serviceability: because the label prefix is unverified against Juniper records, RMA or support entitlement through Juniper should not be assumed.
Pre-deployment verification: confirm the unit label, Junos release, PSU type, and airflow direction before deployment.
Frequently Asked Questions (FAQ)
Q. What is the GFX5100-48S-3AFI?
It is a switch labeled GFX5100-48S-3AFI whose hardware corresponds to the Juniper QFX5100-48S platform: 48x 1/10GbE SFP+ ports, 6x QSFP+ 40GbE ports, 1.44 Tbps aggregate throughput, dual PSUs, AFI airflow, 1U. The GFX prefix could not be verified as an official Juniper PID, so the unit is sold per its label.
Q. How does GFX5100-48S-3AFI relate to the Juniper QFX5100-48S-3AFI?
The port configuration and platform match the Juniper QFX5100-48S with the -3AFI ordering suffix (dual PSU, back-to-front airflow). Only the QFX5100-48S platform specification is claimed here; the GFX-prefixed label is documented as found on the unit.
Q. What does AFI mean on this switch?
AFI denotes airflow-in cooling: intake on the FRU (fan/PSU) side and exhaust on the port side — back-to-front. The AFO variant reverses this.
Q. Can the QSFP+ ports be broken out to 10GbE?
Juniper documents 4x10GbE breakout on the QFX5100 40GbE ports, providing up to additional 10GbE server ports; verify the port profile configuration for your Junos release.
Q. Are Juniper licenses or support included?
No. No license, warranty, or Juniper support entitlement is included or claimed, and Juniper serviceability of a GFX-labeled unit should not be assumed.
Q. What condition is this GFX5100-48S-3AFI supplied in by T.E.S IT-SOLUTIONS?
Refurbished. The unit is tested where test topology is available, inspected, and professionally packed. EU stock with global B2B shipping.
Why T.E.S IT-SOLUTIONS
This unit ships with: (1) functional testing where test topology is available, (2) configuration wipe and inspection, (3) full cosmetic check, (4) professional anti-static packaging, (5) global B2B shipping from EU stock, (6) technical consultation for network design at no extra cost.
Condition: Refurbished. Bench-tested where test topology is available, inspected, and professionally packed by T.E.S IT-SOLUTIONS. Sold per unit label (GFX5100-48S-3AFI). EU stock, global B2B shipping.