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REFURBISHED
Cisco
Cisco WS-C3750X-48P-L Refurbished 48-Port PoE+ Gigabit Switch
MPN: WS-C3750X-48P-L
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Lifetime
Warranty
ISO 9001
Certified Testing
R2v3
Responsible Refurb
25+
Years
5K+
Customers
ISO
Certified
✓
Tested
Every WhaleyComm unit is professionally tested, reset to factory defaults, and certified by our in-house engineers — the same standard trusted by 5,000+ organisations across 25 years. Not a refurb marketplace. A certified lifecycle partner.
Tested to factory specification. Backed by 25 years of enterprise trust.
This professionally tested and refurbished Cisco Catalyst WS-C3750X-48P-L is a 1U, rack-mountable, stackable enterprise-class switch delivering 48 x 10/100/1000 Mbps IEEE 802.3at PoE+ ports with a bundled C3KX-PWR-715WAC 715W AC power supply. Running Cisco IOS LAN Base feature set, the unit has been reset to factory defaults and verified fully operational through WhaleyComm's ISO 9001-certified testing process — making it an enterprise-ready solution at a fraction of new list price.The WS-C3750X-48P-L is built on Cisco's StackWise Plus architecture, providing up to 64 Gbps of stack throughput across up to nine stacked units, with a per-switch switching capacity of 160 Gbps and a forwarding rate of 101.2 Mpps. The switch ships with 256 MB DRAM and supports up to 1,005 VLANs with Jumbo Frame support (9,216 bytes). One hot-swappable network module slot accepts optional SFP/SFP+ uplink modules for 1G or 10G connectivity. Key features include Cisco StackPower power sharing, IEEE 802.1x port-based authentication, DHCP snooping, Dynamic ARP Inspection, QoS, IGMP snooping, MLD snooping, RSTP/MSTP, and full SNMP v1/v2c/v3 management. The dual power supply bays support an optional second PSU for redundancy.
This unit delivers enterprise Gigabit PoE+ switching capability at a significant discount versus new hardware pricing. Whether deploying IP phones, wireless access points, or IP cameras across a wired access layer, the WS-C3750X-48P-L delivers proven Cisco performance and reliability at a budget-conscious price — backed by WhaleyComm's Lifetime Warranty.
Technical Specifications
Part Number
WS-C3750X-48P-L
Series
Cisco Catalyst 3750-X
Form Factor
1U Rack-Mountable, Stackable
Total PoE+ Ports
48 x 10/100/1000BASE-T (RJ-45), IEEE 802.3at PoE+
Network Module Slot
1 (hot-swappable; supports optional SFP/SFP+ uplink modules)
Switching Capacity
160 Gbps
Forwarding Rate
101.2 Mpps
Stack Architecture
Cisco StackWise Plus — up to 64 Gbps throughput, up to 9 units per stack
DRAM
256 MB
Flash Memory
128 MB
Power Supply (Included)
C3KX-PWR-715WAC — 715W AC, hot-swappable
PoE Budget
Up to 435W (with 715W PSU)
Redundant Power Supply
Optional second PSU bay (supports 1+1 redundancy)
Operating System
Cisco IOS Software — LAN Base feature set
VLANs Supported
1,005 (up to 255 active with LAN Base)
Jumbo Frame Support
9,216 bytes
Management
CLI, Telnet, SSH, SNMP v1/v2c/v3, RMON, Syslog
Layer Support
Layer 2
Authentication
IEEE 802.1x, RADIUS, TACACS+, Kerberos
Dimensions (H x W x D)
1.75 in x 17.5 in x 18.0 in (4.45 x 44.5 x 46.0 cm)
Weight
7.5 kg (16.55 lbs)
MTBF
139,913 hours
Input Voltage
100–240V AC, 50/60 Hz
Ideal Use Cases
Enterprise Wired Access Layer
Deploy as an access-layer switch in enterprise wiring closets to deliver Gigabit connectivity and IEEE 802.3at PoE+ to desktops, IP phones, and other endpoints at scale with 48 ports per 1U of rack space.
IP Telephony Deployments
Power and connect up to 48 Cisco IP phones simultaneously from a single switch using the 715W PSU and 435W PoE budget, eliminating the need for separate power adapters.
Wireless Access Point Powering
Power 802.11n/ac access points throughout a campus or office building using PoE+, enabling clean cable runs without external power injectors.
IP Surveillance and Physical Security
Provide PoE+ power and Gigabit connectivity to IP cameras and network video recorders across a security infrastructure without additional power infrastructure.
Stackable, Scalable Wiring Closet Builds
Leverage Cisco StackWise Plus technology to stack up to nine WS-C3750X switches into a single logical unit with 64 Gbps stack throughput, scaling port density without adding management complexity.
Budget-Conscious IT Infrastructure Refresh
Refresh aging access-layer infrastructure at a fraction of new hardware cost while retaining full Cisco IOS feature parity and enterprise-class reliability — ideal for cost-sensitive deployments, lab environments, and secondary sites.
What's Included
Cisco WS-C3750X-48P-L 48-Port PoE+ Gigabit Switch
C3KX-PWR-715WAC 715W AC Power Supply (x1, installed)
Rack-mount kit
AC power cord
Console cable (RJ-45 to DB-9)
Certificate of testing and factory reset
WhaleyComm Lifetime Warranty certificate
Lifetime Warranty — No Time Limits. No Questions.
Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it. We have stood behind our hardware for 25 years and 5,000+ customers — that is not a marketing line, it is our operating standard.
Compatibility Details
Review supported optics, cables, software, management protocols, and environment-specific compatibility guidance.
✓
Compatible Network Modules (Uplink Slot)
✓
C3KX-NM-1G — 4x SFP Gigabit Ethernet Network Module
✓
C3KX-NM-10G — 2x SFP+ 10 Gigabit Ethernet Network Module
✓
C3KX-NM-10GT — 2x 10GBASE-T Network Module
✓
C3KX-SM-10G — Cisco Service Module (10G, supports MACsec and Flexible NetFlow)
✓
Compatible Power Supplies
✓
C3KX-PWR-715WAC — 715W AC Power Supply (included)
✓
C3KX-PWR-1100WAC — 1100W AC Power Supply (for higher PoE budget)
✓
C3KX-PWR-440WDC — 440W DC Power Supply
✓
Compatible Stacking Cables
✓
STACK-T1-50CM — StackWise Plus 50 cm stacking cable
✓
STACK-T1-1M — StackWise Plus 1 m stacking cable
✓
STACK-T1-3M — StackWise Plus 3 m stacking cable
✓
CAB-SPWR-30CM — StackPower cable 30 cm
✓
CAB-SPWR-150CM — StackPower cable 150 cm
✓
Supported SFP/SFP+ Optics (via Network Module)
✓
GLC-SX-MMD — 1000BASE-SX SFP (multimode fiber)
✓
GLC-LH-SMD — 1000BASE-LX/LH SFP (single-mode fiber)
✓
GLC-T — 1000BASE-T SFP (copper)
✓
SFP-10G-SR — 10GBASE-SR SFP+ (multimode fiber)
✓
SFP-10G-LR — 10GBASE-LR SFP+ (single-mode fiber)
For compatibility verification specific to your environment, contact our engineering team: +1 214 607-4800 or sales@whaleycomm.com
Shipping & Returns
Clear fulfilment, tracking, return, warranty, and support information for enterprise hardware orders.
Shipping
Orders typically ship within 1-2 business days after payment confirmation. Tracking details are shared once the order has been dispatched.
Returns
Eligible products can be returned according to WhaleyComm's return policy. For DOA, warranty, or product-related issues, contact the support team for replacement or resolution.
Frequently Asked Questions
Product-specific answers about compatibility, testing, warranty, fulfilment, and purchase confidence.
With the bundled C3KX-PWR-715WAC 715W AC power supply installed, the WS-C3750X-48P-L provides up to 435W of total PoE budget across all 48 ports. Each port supports IEEE 802.3at PoE+ (up to 30W per port), suitable for powering IP phones, wireless access points, and IP cameras. A second optional PSU can be added for power redundancy without increasing the PoE budget.
Yes — this switch supports Cisco StackWise Plus technology, allowing up to nine switches to be stacked into a single logical unit with 64 Gbps of stack throughput. Note that StackWise and StackPower cables are not included and must be purchased separately (e.g., CAB-SPWR-30CM or CAB-SPWR-150CM for StackPower; STACK-T1-50CM or similar for StackWise).
This unit ships with Cisco IOS LAN Base, which provides comprehensive Layer 2 switching features and up to 255 active VLANs. The feature set can be upgraded to IP Base or IP Services via Cisco IOS Software Activation licensing to enable routed access, MACsec, EIGRP, OSPF, and other Layer 3 features. Contact our team for guidance on software licensing options.
Yes. Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it at no cost — no time limits, no questions asked.
Every unit goes through our ISO 9001-certified testing process: full power-on diagnostics, port-by-port functionality testing, firmware verification, factory reset, and final inspection. A Certificate of Testing ships with every unit.
Cisco WS-C3750X-48P-L Refurbished 48-Port PoE+ Gigabit Switch
$89.00
Cisco
Cisco WS-C3750X-48P-L Refurbished 48-Port PoE+ Gigabit Switch
MPN: WS-C3750X-48P-L
$89.00
In Stock — Ships Same Day
