HP S5500-28C-EI 5500 Series 5500-24G-SFP 24 x RJ-45 Ports 10/100/1000Base-T + 8 x Dual-Personality RJ-45/SFP Ports Layer 3 Managed Rack-mountable Gigabit Ethernet Network Ei Switch
HP S5500-28C-EI 5500 Series 5500-24G-SFP 24 x RJ-45 Ports 10/100/1000Base-T + 8 x Dual-Personality RJ-45/SFP Ports Layer 3 Managed Rack-mountable Gigabit Ethernet Network Ei Switch. Refurbished. In Stock Brand: HP Part Number: S5500-28C-EI Condition: Refurbished Category: Transceiver Key Specs: 45 Port, 24G, Layer 3 Availability: In Stock Shipping: Fast US-based shipping Order the HP S5500-28C-EI today from ProDisk Network — your trusted source for enterprise IT hardware. All products are qual
The S5500-28C-EI is a HP transceiver component. Pro Disk Network sells the S5500-28C-EI for $191.58 with same-day US shipping and a 30-day return guarantee.
Reviewed By
Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the S5500-28C-EI 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 S5500-28C-EI compatible with my switch?
Pro Disk Network validates every S5500-28C-EI 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 S5500-28C-EI ship?
If in stock, the S5500-28C-EI 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 S5500-28C-EI 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 S5500-28C-EI?
The S5500-28C-EI is a HP network interface module, manufactured by HP. 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 S5500-28C-EI
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 S5500-28C-EI
Is the S5500-28C-EI a genuine HP part?
Yes. Pro Disk Network sources every S5500-28C-EI as factory-original HP inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned HP servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Is the S5500-28C-EI compatible with my switch?
Pro Disk Network validates every S5500-28C-EI 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 S5500-28C-EI ship?
If in stock, the S5500-28C-EI 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 S5500-28C-EI?
New S5500-28C-EI units carry the full HP 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 S5500-28C-EI?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the S5500 series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
S5500BC — S5500BC - Intel S5500BC Server Motherboard 5500 Chipset Socket B LGA-1366 SSI CEB 2 x Processor Support 32GB DIMM — $450.00
S5500WB — S5500WB - Intel Xeon NEHALEM 1U 2U 6 SATA 8 DIMM DDR3 SSI Server Motherboard — $305.05
S5500WB12V — S5500WB12V - Intel Xeon NEHALEM 1U 2U 6 SATA 8 DIMM DDR3 12V Server Motherboard — $429.83
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 S5500-28C-EI 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 S5500-28C-EI 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 S5500-28C-EI and the connected NICs support jumbo frames — some older NICs cap at 9000-byte payloads even when jumbo-enabled.