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S2421G 24-Port Gigabit PoE Switch, 400W, 2 Uplink + SFP, Rackmount

S2421G

Type Unmanaged Smart Gigabit PoE Switch
PoE Ports 24× 10/100/1000Mbps (IEEE 802.3af/at)
Uplink Ports 2× 10/100/1000Mbps RJ45 + 1× 1000M SFP
PoE Per Port Up to 30W (802.3at)
Total PoE Budget 400W (Built-in AC 100~240V)

5 Years Warranty

Overview

  • 24× full-Gigabit PoE ports (802.3af/at) — up to 30W per port, 400W total
  • 2× Gigabit RJ45 uplinks + 1× Gigabit SFP fiber slot for backhaul
  • PoE Watchdog auto-reboots unresponsive cameras and APs (Ports 1–16)
  • AI Extend mode — 250m long-distance PoE on Ports 1–8
  • Port VLAN isolation via DIP switch to suppress broadcast storms
  • Built-in AC 100~240V power supply — no external power bricks needed
  • 52Gbps switching capacity, 40.17Mpps forwarding, 8K MAC table
  • 4kV surge protection, fanless steel chassis — desktop or 1U rack mount

The S2421G is a 27-port unmanaged smart Gigabit PoE switch with 24× full-Gigabit 802.3af/at PoE ports (30W each, 400W total), 2× Gigabit RJ45 uplinks, and 1× Gigabit SFP fiber slot, powered by a built-in AC 100–240V supply. With PoE Watchdog auto-recovery, 250m EXTEND mode on Ports 1–8, port VLAN isolation, a 52Gbps switching fabric, and 4kV surge protection in a fanless 1U steel chassis, it is built for large IP camera systems and high-density Wi-Fi 6 AP networks in hotels, campuses, and enterprises.

Ideal For

  • Large IP camera and NVR networks in campuses, hotels, and factories
  • High-density Wi-Fi 6 access point deployments needing Gigabit + 30W PoE
  • Surveillance and network cabinets requiring 1U rack mounting
  • Aggregation of multiple floors or zones onto a single Gigabit switch
  • Deployments needing a Gigabit fiber (SFP) uplink to a core switch

Deployment Advantages

With 24 full-Gigabit PoE ports and a 400W budget, the S2421G consolidates a large camera or AP rollout onto one 1U switch — no external injectors and no 100M bottlenecks at the device. The fanless steel chassis mounts in a standard 19-inch rack, while two Gigabit RJ45 uplinks plus a Gigabit SFP slot provide copper or fiber backhaul to the core.

PoE Watchdog auto-recovery power-cycles devices that hang, keeping unmanned sites online, and the 250m EXTEND mode on Ports 1–8 reaches remote cameras and APs. VLAN isolation suppresses broadcast storms, and the 52Gbps fabric with 40.17Mpps forwarding handles simultaneous Gigabit streams without congestion.

OEM/ODM Ready

MossLink offers OEM and ODM customization for this product, including custom port configurations, power budget variations, enclosure branding, and private-label packaging. Volume pricing is available for surveillance integrators, IT distributors, and enterprise resellers. Contact us to discuss your project requirements.

Specifications

Type Unmanaged Smart Gigabit PoE Switch
PoE Ports 24× 10/100/1000Mbps (IEEE 802.3af/at)
Uplink Ports 2× 10/100/1000Mbps RJ45 + 1× 1000M SFP
PoE Per Port Up to 30W (802.3at)
Total PoE Budget 400W (Built-in AC 100~240V)
Switching Capacity 52Gbps
Forwarding Rate 40.17Mpps
MAC Address Table 8K
Extend Mode Up to 250m @ 10Mbps (Ports 1–8)
PoE Watchdog Ports 1–16
Surge Protection 4kV (8/20μs) per-port lightning protection
Enclosure IP30 Steel, Fanless, 1U Rackmount
Dimensions 310 × 205 × 44 mm
Temperature -20°C ~ +55°C

Ordering & Customization

The S2421G ships factory-direct from Shenzhen with full OEM/ODM support. Three customization levels are available depending on your order quantity:

Logo & Packaging (OEM)

From 100 units

  • Your logo on the enclosure
  • Branded box, labels & user manual
  • Zero MossLink branding on final product

Custom Firmware (Software)

From 500 units

  • Custom web UI & boot screen
  • Default configuration & feature tuning
  • Regional and regulatory presets

Custom Hardware (ODM)

From 1,000 units

  • Enclosure & antenna modifications
  • Port and power-budget variations
  • PCB-level customization

Learn more about our OEM/ODM process →

Standard MOQ
100 units for standard products with no customization
Samples
1–5 evaluation units at product cost plus shipping — sample fee credited toward your first bulk order
Lead Time
In-stock products: 3–5 business days · bulk production: 3–4 weeks · OEM/ODM orders: 4–8 weeks
Payment Terms
30% deposit, 70% balance before shipment · T/T and L/C accepted, in USD
Shipping
DHL / FedEx / UPS express, air and sea freight · DDP, FOB Shenzhen, or CIF terms
Packaging
Each unit individually boxed with protective foam; palletized export cartons for freight — carton specs available on request
Quality Control
100% inspection and 24-hour burn-in testing; a signed QC report ships with every order
Certifications
CE, FCC, and RoHS standard · additional market certifications (IC, TELEC, NCC, etc.) available via ODM

Frequently Asked Questions

Are all 24 ports on the S2421G full Gigabit?
Yes. The S2421G has 24× 10/100/1000Mbps PoE ports, plus 2× Gigabit RJ45 uplinks and a Gigabit SFP slot — every port is Gigabit-capable. This makes it suitable for Gigabit IP cameras, Wi-Fi 6 access points, and data devices that need full 1000Mbps throughput, not just backhaul.
What is the total PoE power budget of the S2421G?
The S2421G provides a 400W total PoE power budget from a built-in AC 100–240V supply across 24 ports, each supporting up to 30W (802.3at). That powers a large camera or AP deployment from a single 1U switch, with the budget shared dynamically across active ports.
Is the S2421G suitable for Wi-Fi 6 access point networks?
Yes. Because all 24 PoE ports are full Gigabit and support 802.3at 30W, the S2421G is well suited to Wi-Fi 6 AP deployments that need both Gigabit uplinks and higher PoE draw per device — for example dense hotel, campus, or office wireless coverage.
Is OEM/ODM customization available for this product?
Yes. MossLink offers full OEM and ODM services for this product, including custom firmware features, hardware modifications, enclosure branding, and private-label packaging. Minimum order quantities apply. Contact us to discuss your project requirements.
What is the MOQ for the S2421G?
Standard S2421G orders start at 100 units. Logo and packaging customization (OEM) also starts at 100 units, custom firmware at 500 units, and custom hardware (ODM) at 1,000 units. Contact sales with your target quantity for a formal quotation.
Can I get a sample of the S2421G before bulk ordering?
Yes. We supply 1–5 evaluation units at product cost plus shipping, and the sample fee is credited toward your first bulk order. Contact us via email or WhatsApp with the model number to arrange a sample.
What is the lead time for the S2421G?
In-stock units ship within 3–5 business days. Bulk production orders typically require 3–4 weeks, and OEM/ODM orders with customization take 4–8 weeks depending on complexity. Rush production is available at additional cost.
Is the S2421G certified for my market?
The S2421G carries CE, FCC, and RoHS certification as standard. Additional certifications for specific markets (IC, TELEC, NCC, etc.) can be arranged through our ODM service.
How is product quality controlled before shipment?
Every unit undergoes 100% inspection and 24-hour burn-in testing before leaving the factory, and a signed QC report ships with every order — full traceability from component to delivery.
What payment terms do you accept?
Standard terms are a 30% deposit with order confirmation and the 70% balance before shipment, paid in USD via T/T. Letter of credit and flexible terms are available for established partners.

Ready to source the S2421G?

Factory-direct pricing, OEM/ODM customization from 100 units, and a 5 years warranty. Send us your target quantity — we reply within 24 hours.