Sourced for enterprise IT teams, the Mellanox UL-SFP--D-S-CH28 (Mellanox UL-SFP+-D-S-CH28 10Gbps 10GBase-DWDM C-Band 40KM LC Duplex Connector SFP+ Transceiver Module) is a Transceiver component appropriate for new-build, expansion, or warranty-replacement procurement. Technical specifications include network speed of 10 GbE, range of 40 km. Appropriate for enterprise core-aggregation tier, hyperscale leaf-spine fabric expansion, EVE-NG / GNS3 lab environments at scale, and matched-pair high-availability switching deployments. Pro Disk Network supplies the UL-SFP--D-S-CH28 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.
The UL-SFP--D-S-CH28 is a Mellanox transceiver component with network speed 10 GbE, range 40 km. Pro Disk Network sells the UL-SFP--D-S-CH28 for $5,621.78 with same-day US shipping and a 30-day return guarantee.
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Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the UL-SFP--D-S-CH28 are shown on this page.
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 UL-SFP--D-S-CH28 compatible with my switch?
Pro Disk Network validates every UL-SFP--D-S-CH28 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 UL-SFP--D-S-CH28 ship?
Pro Disk Network dispatches the UL-SFP--D-S-CH28 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 UL-SFP--D-S-CH28 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 UL-SFP--D-S-CH28?
The UL-SFP--D-S-CH28 is a Mellanox network interface module with network speed 10 GbE and range 40 km, manufactured by Mellanox. 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 UL-SFP--D-S-CH28
Pros
Same-day US shipping cuts deployment downtime
Cons
Not for hyperscale ZR coherent — different SKU family
Some vendors deprecate firmware on EOL part numbers
Mismatched optic+switch firmware can require manual override
Frequently Asked Questions about UL-SFP--D-S-CH28
Is the UL-SFP--D-S-CH28 a genuine Mellanox part?
Yes. Pro Disk Network sources every UL-SFP--D-S-CH28 as factory-original Mellanox inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Mellanox servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Is the UL-SFP--D-S-CH28 compatible with my switch?
Pro Disk Network validates every UL-SFP--D-S-CH28 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 UL-SFP--D-S-CH28 ship?
Pro Disk Network dispatches the UL-SFP--D-S-CH28 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 UL-SFP--D-S-CH28?
New UL-SFP--D-S-CH28 units carry the full Mellanox 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 UL-SFP--D-S-CH28?
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 UL-SFP--D-S-CH28 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.