Juniper EX4400-48F-AFI EX4400 Series EX4400-48F 12 x SFP+ Ports 10000Base-X + 36 x SFP Ports 1000Base-X + 4 x SFP28 25GbE Ports + 2 x 100GbE Ports Layer 3 Managed 1U Rack-mountable Gigabit Ethernet Network Switch. In Stock Brand: Juniper Part Number: EX4400-48F-AFI Category: Transceiver Key Specs: 25GbE, 100GbE, Layer 3 Availability: In Stock Shipping: Fast US-based shipping Order the Juniper EX4400-48F-AFI today from ProDisk Network — your trusted source for enterprise IT hardware. All produc
The EX4400-48F-AFI is a Juniper transceiver component with network speed 25 GbE, features SFP28. Pricing on the EX4400-48F-AFI is quote-based — email sales@prodisknetwork.com or use our live chat for a quote within one business day.
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Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the EX4400-48F-AFI are shown on this page.
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Quick Answer: Is the EX4400-48F-AFI compatible with my switch?
Pro Disk Network validates every EX4400-48F-AFI 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 EX4400-48F-AFI ship?
Pro Disk Network dispatches the EX4400-48F-AFI same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
The EX4400-48F-AFI 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.
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.
Branch / Edge — Smaller form-factor switches and routers for branch sites. SD-WAN-compatible or static-VPN-attached as the architecture dictates.
What is the EX4400-48F-AFI?
The EX4400-48F-AFI is a Juniper network interface module with network speed 25 GbE and features SFP28, 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 EX4400-48F-AFI
Pros
Matched-pair option for redundant link orders
Cabling and DAC/AOC labels clearly mark optic class
Cons
Third-party optic — some firmware revs require "service unsupported transceiver-type"
Bulk DAC orders may ship LTL on >100-pc reels
Confirm transceiver coding before mixing vendors in the same chassis
Frequently Asked Questions about EX4400-48F-AFI
Is the EX4400-48F-AFI a genuine Juniper part?
Yes. Pro Disk Network sources every EX4400-48F-AFI 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 EX4400-48F-AFI compatible with my switch?
Pro Disk Network validates every EX4400-48F-AFI 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 EX4400-48F-AFI ship?
Pro Disk Network dispatches the EX4400-48F-AFI same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
What is the warranty on the EX4400-48F-AFI?
New EX4400-48F-AFI 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 EX4400-48F-AFI?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Optic Coding, Vendor Lock-In, and Multi-Vendor Compatibility
If you are running a multi-vendor leaf-spine architecture (Arista leaves and Cisco spines, for example), order optics coded for each endpoint separately. Optics in DAC and AOC cables are factory-coded to each end and cannot be flashed in-field. Plan the coding split at design time and document it in your network drawings.
Bandwidth Sizing for Spine-Leaf, EVPN-VXLAN, and Hyperconverged Storage
Sizing network bandwidth for a leaf-spine fabric using the EX4400-48F-AFI starts with the workload mix. For general-purpose virtualisation, plan 10G server-to-leaf, 25G or 40G leaf-to-spine; oversubscription up to 4:1 is acceptable. For hyperconverged storage (vSAN, Ceph, Storage Spaces Direct), plan 25G server-to-leaf at minimum, 100G leaf-to-spine, oversubscription 1.5:1 maximum. East-west traffic dominates in HCI clusters and starves on oversubscribed fabrics.