Dell Dell WKFYN Dell 0WKFYN / WKFYN Networking S6100-ON 32 x QSFP28 Ports 100GbE + 2 x SFP+ Ports 10GbE Layer 3 Managed 2U Rack-mountable Ethernet Network Switch. In Stock Brand: Dell Part Number: Dell WKFYN Category: Transceiver Key Specs: 28 Port, 100GbE, 10GbE, Layer 3 Availability: In Stock Shipping: Fast US-based shipping Order the Dell Dell WKFYN today from ProDisk Network — your trusted source for enterprise IT hardware. All products are quality-tested and backed by our support team.
The DELL WKFYN is a Dell transceiver component with network speed 100 GbE, features QSFP28. Pricing on the DELL WKFYN 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 DELL WKFYN are shown on this page.
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Quick Answer: Is the DELL WKFYN compatible with my switch?
Pro Disk Network validates every DELL WKFYN 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 DELL WKFYN ship?
If in stock, the DELL WKFYN 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 DELL WKFYN 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 DELL WKFYN?
The DELL WKFYN is a Dell network interface module with network speed 100 GbE and features QSFP28, manufactured by Dell. 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 DELL WKFYN
Pros
Same-day US shipping cuts deployment downtime
Cons
Refurbished switches may show minor rack-rail wear
Power supplies sold separately on certain SKUs
Long-haul ZR4/CFP4 modules subject to export-control screening
Frequently Asked Questions about DELL WKFYN
Is the DELL WKFYN a genuine Dell part?
Yes. Pro Disk Network sources every DELL WKFYN as factory-original Dell inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Dell servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Is the DELL WKFYN compatible with my switch?
Pro Disk Network validates every DELL WKFYN 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 DELL WKFYN ship?
If in stock, the DELL WKFYN 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 DELL WKFYN?
New DELL WKFYN units carry the full Dell 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 DELL WKFYN?
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
Networking optics — SFP, SFP+, QSFP+, QSFP28 — are physically interoperable across vendors but logically restricted by firmware coding. The DELL WKFYN 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 DELL WKFYN 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 DELL WKFYN and the connected NICs support jumbo frames — some older NICs cap at 9000-byte payloads even when jumbo-enabled.