Dell EMC S4048-ON 48 Port Fully Managed Layer 3 SFP+ Network Switch 1.44 Tbps
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£200.99
Dell EMC S4048-ON 48 Port Fully Managed Layer 3 SFP+ — Refurbished Network Switch
Upgrade your network infrastructure without the premium price tag. This refurbished Dell network switch is professionally tested and ready for deployment. Whether you are expanding a small business network or upgrading a server room, this switch delivers enterprise-grade performance at a fraction of new cost. Comes with 12-month warranty and free next-day delivery.
Full Specifications
Dell EMC S4048-ON| Category | Specification | Model Dell EMC S4048-ON (Open Networking Switch) Switch Type Layer 2 / Layer 3 Managed Ethernet Switch Deployment Top-of-Rack (ToR) Data Center Switch Form Factor 1U Rack Mount Switching Capacity 1.44 Tbps (full duplex) Forwarding Rate Up to 720 Mpps (line-rate forwarding) Latency <650 ns (10GbE) Ports 48 × 1/10GbE SFP+ Uplink Ports 6 × 40GbE QSFP+ Breakout Support Each QSFP+ port supports 4 × 10GbE breakout (up to 72 × 10GbE interfaces total) Management Ports 1 × RJ-45 Console, 1 × Micro-USB Console, 1 × USB Type-A, 1 × Out-of-band 10/100/1000 Ethernet Operating Systems Dell Networking OS9, SmartFabric OS10, ONIE (Open Network Install Environment); also supports selected third-party NOS options via ONIE CPU Intel® Rangeley Dual-Core Processor System Memory 4 GB DDR3 RAM Storage Internal mSATA SSD for OS Packet Buffer 12 MB MAC Address Table 160,000 entries IPv4 Routes Up to 128,000 IPv6 Routes Up to 64,000 VLAN Support IEEE 802.1Q VLANs Link Aggregation IEEE 802.3ad (LACP) Spanning Tree STP, RSTP, MSTP Routing Protocols Static Routing, RIP, OSPF, BGP, IS-IS, VRRP, PIM (depending on OS license/features) Data Center Features VXLAN Gateway, DCB, ECMP, VLT (Virtual Link Trunking), VRF-Lite, OpenFlow 1.3 Virtualization VXLAN, VRF-Lite Automation Embedded Open Automation Framework, ONIE support Power Supplies Dual Hot-swappable, Redundant AC or DC PSUs Cooling Hot-swappable fan modules with front-to-back or back-to-front airflow options Maximum Power Consumption Approximately 234 W (AC configuration) Typical Power Consumption Approximately 153 W Operating Temperature 0°C to 45°C (32°F to 113°F) Humidity 5%–85% RH, non-condensing Dimensions (H × W × D) 43.5 × 434 × 460 mm (1.71 × 17.09 × 18.11 in) Weight Approximately 9.9 kg (21.7 lb) Rack Clearance Minimum 12.7 cm (5 in) front and rear Compliance IEEE 802.3, 802.1Q, 802.1p, 802.1D, 802.1w, 802.1s, 802.1ab, 802.1x, RoHS, CE, FCC
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Ideal For
- Small business networks — connect office PCs, printers, phones, and access points
- Server rooms — reliable backbone switching for rack environments
- IT labs and testing — learn networking, practice for certifications
What is Included
- Dell EMC S4048-ON 48 Port Fully
- Power cable
- 12-month return-to-base warranty
- Free next-day delivery (UK mainland)
Why Buy from Bluecybercow?
- Over 14,000 satisfied customers across the UK
- Every device professionally tested
- 12-month warranty on every purchase
- Free next-day DPD delivery
- 30-day returns — no questions asked
- Reduce e-waste — save money and the planet
Frequently Asked Questions
What does "refurbished" mean?
Refurbished means the item has been professionally inspected, tested, cleaned, and restored to full working order. Each device undergoes thorough diagnostics, data wiping, and any necessary repairs before being listed for sale. You get a fully functional product at a fraction of the new price.
What condition will my item be in?
Each product listing includes a detailed condition description covering the screen, case, keyboard/trackpad, and battery health. We use grades from Excellent to Fair - you can see our full grading guide here. Every item is unique, so please read the specific condition notes on each product page before purchasing.
What warranty do you offer?
Every product comes with a 12-month warranty covering technical defects and hardware failures. If your device develops a fault during the warranty period, we'll repair or replace it. The warranty does not cover accidental damage, liquid damage, or cosmetic wear.
What is your returns policy?
We offer a 14-day money-back guarantee. If you're not happy with your purchase for any reason, you can return it within 14 days of delivery for a full refund. Items must be returned in the same condition as received. See our full returns policy for details.
Has the data been wiped?
Yes, absolutely. Every device is securely data-wiped before resale. All personal data from previous owners is permanently erased, and the operating system is freshly installed. Your device arrives clean and ready to set up as your own.
What about battery health?
For laptops and tablets, we test and report the battery health on each product listing. You'll see a battery condition rating (e.g., "Good: 65-75% health") so you know exactly what to expect. Batteries are consumable components and naturally degrade over time, but all our devices hold a reasonable charge for daily use.
What's included in the box?
Each product includes the device itself and a compatible power supply/charger (unless stated otherwise in the listing). Original packaging is not included - items are securely packaged for safe delivery. Check individual listings for any additional accessories such as styluses, keyboards, or docking stations.
How long does delivery take?
Free tracked delivery is included with every order. Standard delivery takes 3-5 working days via DPD. You'll receive tracking information so you can follow your parcel every step of the way.