X2KFX - Dell 10Gbps 10GBase-SR Multi-mode Fiber 300m 850nm LC Connector SFP+ Transceiver Module

X2KFX - Dell 10Gbps 10GBase-SR Multi-mode Fiber 300m 850nm LC Connector SFP+ Transceiver Module

SKU: X2KFX Brand: Dell Browse: Dell Network Transceivers Category: Transceiver
$278.80 In Stock — Ships Today

About the X2KFX

This Dell X2KFX delivers Transceiver functionality and is built for 24/7 enterprise duty cycles. Technical specifications include network speed of 10 GbE, wavelength of 850 nm, range of 300 m. Workload fit covers VMware NSX overlay networking, Kubernetes pod-to-pod east-west bandwidth, Storage Replica replication, and high-throughput backup network paths between ToR switches and backup targets. Pro Disk Network supplies the X2KFX to US business buyers. Stocked units ship same-day on in-stock orders placed before 3pm ET. Pro Disk Network applies a 90-day functional warranty. Free US ground shipping on orders over $150; same-day expedited (UPS Next Day Air, FedEx Priority) available at checkout.

Specifications

Part Identification

  • Part Number / MPN

    X2KFX

  • Manufacturer

    Dell

  • Category

    Transceiver

Technical Specifications

  • Network Speed

    10 GbE

  • Wavelength

    850 nm

  • Range

    300 m

Order & Fulfillment Details

  • Condition

    Refurbished

    Quality Tier
    Professionally tested — new available on request
  • Warranty

    90-Day Pro Disk Network Warranty

    Coverage
    Advance replacement — we ship first, you return the faulty unit
  • Shipping

    Free over $150 — Same-Day Dispatch

    Cutoff
    Orders placed before 3pm ET
  • Returns

    30-Day Returns — US

    Return Window
    Original packaging required
Part Number / MPNX2KFX
ManufacturerDell
CategoryTransceiver
Network Speed10 GbE
Wavelength850 nm
Range300 m
ConditionRefurbished — new available on request
Warranty90-Day Pro Disk Network Warranty — advance replacement
ShippingFree over $150 — Same-Day Dispatch
Returns30-Day Returns — US

Summary

The X2KFX is a Dell transceiver component with network speed 10 GbE, wavelength 850 nm, range 300 m. Pro Disk Network sells the X2KFX for $278.80 with same-day US shipping and a 30-day return guarantee.

Trust Signals

  • US-based LLC — 7345 W Sand Lake Rd, STE 210, Office 3208, Orlando, FL 32819
  • 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 X2KFX compatible with my switch?

Pro Disk Network validates every X2KFX 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 X2KFX ship?

X2KFX orders placed before 3 pm ET ship the same business day from US warehouses. Delivery is next business day to most metro ZIPs via FedEx/UPS overnight; ground delivery covers remaining US in 1-4 business days.

Email engineering for a compatibility check ›

Common Use Cases for X2KFX

The X2KFX 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.

  • 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.
  • 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 X2KFX?

The X2KFX is a Dell network interface module with network speed 10 GbE and wavelength 850 nm, 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 X2KFX

Pros

  • Same-day US shipping cuts deployment downtime

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 X2KFX

Is the X2KFX a genuine Dell part?
Yes. Pro Disk Network sources every X2KFX 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 X2KFX compatible with my switch?
Pro Disk Network validates every X2KFX 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 X2KFX ship?
X2KFX orders placed before 3 pm ET ship the same business day from US warehouses. Delivery is next business day to most metro ZIPs via FedEx/UPS overnight; ground delivery covers remaining US in 1-4 business days.
What is the warranty on the X2KFX?
New X2KFX 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 X2KFX?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.

Similar Products

Pro Disk Network Buyer’s Guide: Transceiver

Optic Coding, Vendor Lock-In, and Multi-Vendor Compatibility

For Cisco IOS, IOS-XE, and NX-OS switches, the X2KFX works out-of-box if coded for Cisco; for Aruba ArubaOS-CX, code for HPE/Aruba; for Juniper Junos, code for Juniper. Pro Disk Network confirms the target vendor coding at order time and applies it before shipping. Misordered coding can be flashed in the field but the lead time is longer than ordering correctly the first time.

Bandwidth Sizing for Spine-Leaf, EVPN-VXLAN, and Hyperconverged Storage

Document optic types and bandwidth in your network drawings: SR-SR for intra-rack, LR-LR for inter-rack and DCI, ZR4 for long-haul coherent. Mismatched optic-distance ratings is the most common cause of intermittent link errors that look like cable problems but aren't.

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Network switches, routers, firewalls, NICs, SFP and QSFP transceivers, DAC cables, wireless access points.