
EX4600-40F-DC-AFO
EX4600-40F-DC-AFO Juniper EX4600 switch, 24x 1/10GbE SFP+ and 4x 40GbE QSFP+
Used, tested & guaranteedIn stock
Condition: Used. Tested & Guaranteed
EX4600-40F-DC-AFO, in stock, ships worldwide.
$1,740
A firm price comes back, typically the same business day. Prefer a PO or wire? We take those too. Just ask.
- Model
- EX4600-40F-DC-AFO
- Network Ports
- 24 × 1/10GbE
- Connectors
- SFP+, QSFP+
- Type
- Switch
- Condition
- Used, tested & guaranteed
End of sale and support
| Model | Announced | End of sale | End of support | Notice |
|---|---|---|---|---|
| Juniper EX4600 | Juniper notice |
Juniper end-of-life notice TSB109286. End of engineering is 2029-12-29.
Questions about the Juniper EX4600 family
- What ports does the EX4600-40F-DC-AFO have?
- It has 24 × 1/10GbE; uplinks: 4x 40GbE QSFP+. 28 data ports in all. Connectors: SFP+, QSFP+.
- Which way does the air flow on the EX4600-40F-DC-AFO?
- Airflow is front-to-back (AFO).
- What power does the EX4600-40F-DC-AFO use?
- It uses DC.
- What are the size and weight of the EX4600-40F-DC-AFO?
- Dimensions: 1.72 x17.36 x 20.48 in (4.37 x 44.09 x 52.02 cm). Weight: 21.7 lb (9.84 kg) with PSUs and fans installed.
- How much rack space does the EX4600-40F-DC-AFO take?
- It takes 1U of rack space.
- What software does the EX4600-40F-DC-AFO run?
- It runs Junos OS.
- Is the Juniper EX4600 end of life?
- Yes. Juniper's notice TSB109286, announced 29 June 2026, covers the EX4600-40F-AFI, -AFO, -DC-AFI and -DC-AFO and the EX4600-EM-8F module. Juniper lists the last order date as 29 December 2026, end of engineering as 29 December 2029, the last software version as Junos 21.4 and end of support as 29 December 2031.
- What is the difference between AFO and AFI on an EX4600?
- Airflow direction. Air Out (AFO) moves air from the port side to the power supply and fan side; Air In (AFI) moves it the other way. Juniper says not to mix AC and DC power supplies, or AFI and AFO power supplies and fan modules, in the same chassis.
- Can the EX4600 be stacked with the EX4300?
- Yes. Up to 10 switches form an EX4600 Virtual Chassis in a ring. In a mixed Virtual Chassis of EX4600 and EX4300 switches, the EX4600 can be primary, backup or line card while the EX4300 must be a line card; Juniper fully supports the EX4600 as primary from Junos 14.1X53-D25.
- What condition and warranty come with a Juniper EX4600 switch from Townsend?
- Each listing prints its own condition. Units sold as new, refurbished or used are bench tested before they are listed: every port and module slot is checked and the previous owner's configuration is erased. They are covered by the Townsend warranty from the date of delivery; if the hardware fails in normal use we repair it or replace it with a tested unit, and the length and terms are on our warranty page. Unused hardware can be returned within 30 days of delivery. Juniper software licences and support contracts are not part of our warranty.
The Juniper EX4600-40F-DC-AFO is a switch from the Juniper EX4600 family with 24 ports of 1/10GbE SFP+ and 4 ports of 40GbE QSFP+. It runs Junos OS, with front-to-back (AFO) airflow and DC power. This unit is used: inspected, powered on and functionally tested by our technicians before listing. One switch per order, with a rack-mount kit and the power cable(s) to match.
Juniper EX4600-40F-DC-AFO / EX4600 Series Switch, 24x 1/10GbE SFP+ + 4x 40GbE QSFP+ Fixed Ports, 2x Expansion Slots, DC Power, Front-to-Back Airflow
HOW IT DIFFERS
EX4600-40F-DC-AFO sends air from the port panel to the rear, which the page calls front to back and Juniper calls AFO. EX4600-40F-DC-AFI sends it from the rear to the port panel. That one fact is the whole gap between these two DC models. It matters because every device in a rack should draw from the same cold side. Mount this AFO model where its ports look toward the cold aisle. Where the ports must look toward the hot aisle, the AFI model is the fit. Both need a DC feed of -36 to -72 V and come with two hot-pluggable DC power supplies in 1U. When you add or swap a fan module later, buy the AFO kind for this unit so the whole chassis keeps one direction.
TECHNICAL DETAILS
Brand: Juniper Family: EX4600 Uplinks: 4x 40GbE QSFP+ Total ports: 28 Fastest port: 40GbE Management ports: 2: 1 RJ-45 and 1 SFP Operating system: Junos OS Rack units: 1U Airflow: Front-to-back (AFO) Power input: DC Dimensions: 1.72 x17.36 x 20.48 in (4.37 x 44.09 x 52.02 cm) Weight: 21.7 lb (9.84 kg) with PSUs and fans installed Mounting: two- and four-post rack mounting options Fans: Redundant (N+1), hot-pluggable fan modules Power supplies: 2 DC power supplies; dual redundant (1+1), hot-pluggable Input voltage: -36 to -72 V DC power Operating temperature: 32° to 104° F (0° to 40° C) Storage temperature: -40° to 158° F (-40° to 70° C) Operating humidity: 5% to 90% (noncondensing) MTBF: 150,000 hours (predicted) Switching capacity: 720 Gbps (unidirectional)/1.44 Tbps (bidirectional) Forwarding rate: 1,071 Mpps (wire speed), Layer 2/Layer 3, 64 byte packets MAC addresses: 288,000 per system IPv4 routes: 128,000 prefixes; 208,000 host routes (unicast) IPv6 routes: 64,000 prefixes (unicast) VLANs: 4,091 VLAN IDs Jumbo frames: 9,216 bytes Packet buffer: 12 MB shared buffers Stacking: Virtual Chassis, up to 10 interconnected switches Certifications: CAN/CSA-C22.2 No. 60950-1; UL 60950-1; EN 60950-1; IEC 60950-1; GR-63-Core; GR-1089-Core Warranty: 3 years, Townsend Networks Returns: 30 days
MAKER'S DOCUMENT
WHAT'S INCLUDED
One (1) Juniper EX4600-40F-DC-AFO. Includes a rack-mount kit and the power cable(s) to match the switch.
CONDITION & TESTING
Condition: Used, Tested & Guaranteed EX4600-40F-DC-AFO was tested by our technicians before listing. How we test is on /testing-process.
WARRANTY & RETURNS
EX4600-40F-DC-AFO has a 3-year warranty and a 30-day return policy. DOA units are replaced or refunded. Full terms are on /warranty and /legal/refunds.
Related models

EX4600-40F-DC-AFI
EX4600-40F-DC-AFI Juniper EX4600 switch, 24x 1/10GbE SFP+ and 4x 40GbE QSFP+

EX4600-40F-AFI
EX4600-40F-AFI Juniper EX4600 switch, 24x 1/10GbE SFP+ and 4x 40GbE QSFP+

EX4600-40F-AFO
EX4600-40F-AFO Juniper EX4600 switch, 24x 1/10GbE SFP+ and 4x 40GbE QSFP+

EX4600-EM-8F
EX4600-EM-8F Juniper EX4600 uplink module, 8x 1/10GbE SFP+
Also from JuniperEX4650-48Y-AFOEX4650-48Y-DC-AFO
Questions about the EX4600-40F-DC-AFO? Call 415-626-4231 or email sales@townsendnetworks.com.
