Juniper EX4300-48T-AFO 48 x Ports 10/100/1000Base-T 4 x SFP Ports Layer 3 Managed 1U Rack-mountable Gigabit Ethernet Network Switch. In Stock Brand: Juniper Part Number: EX4300-48T-AFO Category: Transceiver Key Specs: Layer 3 Availability: In Stock Shipping: Fast US-based shipping Order the Juniper EX4300-48T-AFO today from ProDisk Network — your trusted source for enterprise IT hardware. All products are quality-tested and backed by our support team.
The EX4300-48T-AFO is a Juniper transceiver component. Pricing on the EX4300-48T-AFO is quote-based — email sales@prodisknetwork.com or use our live chat for a quote within one business day.
Reviewed By
Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the EX4300-48T-AFO are shown on this page.
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Same-Day US Shipping — orders before 3pm ET ship today via UPS
30-Day Returns — pre-paid label on DOA and defective items
Quick Answer: Is the EX4300-48T-AFO compatible with my switch?
Pro Disk Network validates every EX4300-48T-AFO against the target switch's published compatibility matrix before shipment. If you let us know your switch model and firmware version, we will confirm fitment and code the module appropriately (Cisco-coded, Juniper-coded, HPE-coded, etc.) at no extra charge.
How fast does the EX4300-48T-AFO ship?
If in stock, the EX4300-48T-AFO ships same business day on US orders placed before 3 pm ET. Most US ZIP codes receive next-business-day or 2-day delivery via FedEx/UPS Ground or Express. Bulk and project orders shipping in pallets are typically dispatched within 24-48 hours.
The EX4300-48T-AFO is deployed by US enterprises, MSPs, government, and education customers across multiple infrastructure scenarios. Below are the most common deployment patterns Pro Disk Network sees in real-world orders.
Spine-Leaf Fabric — Top-of-rack 25G/100G aggregation between leaf and spine switches. Match speed and form factor across both endpoints.
Server Uplink — 10G/25G server-to-leaf uplink — pair with matching DAC or AOC at the host NIC to avoid optic mismatch.
DCI (Data Center Interconnect) — Inter-DC routing or aggregation. LR4/LR8 transceivers for 10–80 km, ER4 for 40 km, ZR4 for coherent long-haul.
Campus Distribution — Catalyst-class campus distribution between IDF and MDF closets. PoE+ where wireless APs and IP phones share infrastructure.
What is the EX4300-48T-AFO?
The EX4300-48T-AFO is a Juniper network interface module, manufactured by Juniper. Pro Disk Network ships this part new and certified-refurbished from our US warehouse with same-day dispatch on orders placed before 3 PM ET, backed by a 30-day return guarantee.
Pros & Cons of EX4300-48T-AFO
Pros
Same-day US shipping cuts deployment downtime
Cons
DAC cables capped at 7 m — use AOC or fibre for longer runs
SR optic vs LR optic confusion — verify before ordering
Refurbished tier optic does not include retail vendor packaging
Frequently Asked Questions about EX4300-48T-AFO
Is the EX4300-48T-AFO a genuine Juniper part?
Yes. Pro Disk Network sources every EX4300-48T-AFO as factory-original Juniper inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Juniper servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Is the EX4300-48T-AFO compatible with my switch?
Pro Disk Network validates every EX4300-48T-AFO against the target switch's published compatibility matrix before shipment. If you let us know your switch model and firmware version, we will confirm fitment and code the module appropriately (Cisco-coded, Juniper-coded, HPE-coded, etc.) at no extra charge.
How fast does the EX4300-48T-AFO ship?
If in stock, the EX4300-48T-AFO ships same business day on US orders placed before 3 pm ET. Most US ZIP codes receive next-business-day or 2-day delivery via FedEx/UPS Ground or Express. Bulk and project orders shipping in pallets are typically dispatched within 24-48 hours.
What is the warranty on the EX4300-48T-AFO?
New EX4300-48T-AFO units carry the full Juniper manufacturer warranty (typically 1 to 5 years depending on product line). Refurbished and bulk-OEM units include a Pro Disk Network advance-replacement warranty (90 days refurbished). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the EX4300-48T-AFO?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
EX4300-48MP — EX4300-48MP - Juniper EX Series 48-Port 24 x 10/100/1000 + 24 x 10GBase-T (PoE+) Rack-Mountable 1U Switch — $2,997.89
Pro Disk Network Buyer’s Guide: Transceiver
Optic Coding, Vendor Lock-In, and Multi-Vendor Compatibility
Networking optics — SFP, SFP+, QSFP+, QSFP28 — are physically interoperable across vendors but logically restricted by firmware coding. The EX4300-48T-AFO is coded for a specific vendor family at our factory step before shipping, which preserves the OEM warranty workflow and allows the optic to be recognised without ‘service unsupported-transceiver’ CLI overrides. Mixing third-party optics with same-vendor optics in the same chassis is safe; mixing across vendor codings sometimes triggers warnings in the switch log.
Bandwidth Sizing for Spine-Leaf, EVPN-VXLAN, and Hyperconverged Storage
For EVPN-VXLAN overlays, the EX4300-48T-AFO carries the underlay tunnels in addition to the workload traffic. Plan for VXLAN encapsulation overhead (50 bytes) plus MTU headroom; set the underlay MTU to 9216 (jumbo frames) and the overlay MTU to 9000. Make sure both the EX4300-48T-AFO and the connected NICs support jumbo frames — some older NICs cap at 9000-byte payloads even when jumbo-enabled.