H3C S5120V3-20P-LI 16-Port Gigabit L3 Managed Switch, 4 x SFP
PRODUCT DESCRIPTION
H3C S5120V3-20P-LI 16-Port Gigabit L3 Ethernet Switch (LS-5120V3-20P-LI-GL) - 5 Years Local Warranty
16 Gigabit Ports
The H3C S5120V3-20P-LI is a Layer 3 Ethernet switch with 16 x 10/100/1000BASE-T ports and 4 x 1000BASE-X SFP uplinks. H3C rates it at 40 Gbps switching capacity and 30 Mpps forwarding.
Layer 3 Routing and IRF2 Stacking
Static routing, RIPv1/v2, RIPng and OSPFv1/v2/v3 with IPv4/IPv6 VLAN interfaces. IRF2 virtualises up to 9 switches into one logical device managed from a single IP, stacking through standard Ethernet ports at up to 16 Gbps.
Security and Green Design
ARP attack protection, 802.1X and MAC authentication, port security, IP Source Guard and EAD, with SSH 2.0 and HTTPS management. Auto-power-down and EEE energy saving, a fanless design and 6 kV port surge protection.
H3C S5120V3-20P-LI Datasheet — Technical Specifications
General
| Product Name | H3C S5120V3-20P-LI L3 Ethernet Switch |
| Model | LS-5120V3-20P-LI-GL |
| Part Number (BOM) | 9801A41G |
| Switch Type | Layer 3 Ethernet switch (H3C S5120V3-LI series) |
| Local Warranty (Singapore) | 5 years, supplied by SourceIT with a GST invoice |
Interfaces
| Port Configuration (H3C) | 16×10/100/1000TX + 4×SFP |
| Copper Ports | 16 x 10/100/1000BASE-T |
| SFP Ports | 4 x 1000BASE-X SFP |
| Management Port | 1 x console port |
| PoE | No |
Performance
| Switching Capacity | 40 Gbps |
| Forwarding Rate | 30 Mpps |
| MAC Address Table | 8K entries |
| IPv4 Routing Entries | 512 |
| IPv4 ARP Entries | 128 |
| IPv4 ACL Entries | 256 |
| IPv6 Unicast Routing Entries | 16 |
| IPv6 ND Entries | 64 |
| VLANs | 4,094 |
| CPU / Flash / SDRAM | 1 core 800 MHz / 256 MB / 512 MB |
| Stacking | IRF2, up to 9 units, max. 16 Gbps stacking bandwidth |
Power & Physical
| Power Supply | Built-in AC: 100–240 V AC, 50/60 Hz |
| Power Consumption | Min 9 W / max 19 W (AC) |
| Cooling | Fanless |
| Port Surge Protection | 6 kV |
| Dimensions (W x D x H) | 330 × 230 × 43.6 mm |
| Weight | ≤ 2 kg |
| MTBF | 136.24 years |
| Operating Temperature | -5 to 50 °C |
| Storage Temperature | -40 to 70 °C |
| Humidity | 5% to 95% RH, non-condensing |
| Mounting | Rack mount supported (see Package Contents below) |
Specifications from H3C's official S5120V3-LI product page (hardware, performance and PoE power capacity tables) on h3c.com; part number from the distributor ordering list.
Compatibility & Software Support
Management
Per H3C's S5120V3-LI specification: configuration through CLI, Telnet and console port, web-based management, SNMPv1/v2c/v3, RESTful, Zero Touch Provisioning and H3C iMC network management. H3C lists the series among its SMB Smart (Cloudnet) products, but the product page specification does not list cloud management, so ask us before planning Cloudnet management.
Layer 2 & Layer 3 Features
Port-, MAC- and protocol-based VLANs, QinQ, voice VLAN, LACP and cross-device link aggregation, STP/RSTP/MSTP/PVST, Smart Link, RRPP and G.8032 ERPS ring protection, IGMP/MLD snooping, plus static routing, RIP/RIPng and OSPFv1/v2/v3.
Security & QoS
802.1X, MAC authentication, port security, port isolation, IP Source Guard, ARP detection, AAA with RADIUS/HWTACACS and SSH 2.0; L2–L4 traffic classification, 8 queues per port with SP/WRR/SP+WRR scheduling and CAR rate limiting.
Typical Use
Gigabit-to-the-desktop access for SME offices and branches, stacked with IRF2 and uplinked over SFP/SFP+ to an aggregation or core switch.
Package Contents & H3C S5120V3-LI Ordering Information
H3C S5120V3-LI Models
| Model | Ports | PoE | Part No. |
| S5120V3-10P-LI | 8 x GE + 2 x SFP | — | 9801A41E |
| S5120V3-10P-PWR-LI | 8 x GE + 2 x SFP | 125 W | 9801A41P |
| S5120V3-20P-LI (this listing) | 16 x GE + 4 x SFP | — | 9801A41G |
| S5120V3-28P-LI | 24 x GE + 4 x SFP | — | 9801A41C |
| S5120V3-28P-PWR-LI | 24 x GE + 4 x SFP | 240 W | 9801A41H |
| S5120V3-28P-HPWR-LI | 24 x GE + 4 x SFP (combo) | 370 W | 9801A40V |
| S5120V3-52P-LI | 48 x GE + 4 x SFP | — | 9801A41M |
| S5120V3-52P-PWR-LI | 48 x GE + 4 x SFP | 370 W | 9801A412 |
| S5120V3-28S-LI | 24 x GE + 4 x 10G SFP+ | — | 9801A41T |
| S5120V3-28S-PWR-LI | 24 x GE + 4 x 10G SFP+ | 240 W | 9801A40S |
| S5120V3-28S-HPWR-LI | 24 x GE + 4 x SFP combo + 4 x 10G SFP+ | 370 W | 9801A41J |
| S5120V3-28F-LI | 24 x GE SFP + 2 x combo + 2 x SFP + 2 x 10G SFP+ | — | 9801A4MW |
| S5120V3-52S-LI | 48 x GE + 4 x 10G SFP+ | — | 9801A41D |
| S5120V3-52S-PWR-LI | 48 x GE + 4 x 10G SFP+ | 370 W | 9801A414 |
Rack mounting is supported. Units of hardware version B0 manufactured from 3 December 2025 include mounting brackets; other units need the separately sold SOHO-SWITCH-FL-02 (0223A056) kit for rack installation — ask us which version is in stock.
Full package contents are not listed on H3C's product page — ask us if you need confirmation of the included power cord and accessories. H3C's ordering list offers SFP-GE and SFP-XG transceivers and LSWM1STK/LSWM2STK/LSWM3STK/LSTM1STK SFP+ stacking cables for the series.
Datasheet & Downloads
| H3C product page | H3C S5120V3-LI Series on h3c.com |
| H3C datasheet | S5120V3-LI datasheet download (download.h3c.com) |
| Hardware guide | H3C S5120V3-EI & S5120V3-LI & S5120V3-SI Switch Series Hardware Information and Specifications |
Frequently Asked Questions — H3C S5120V3-20P-LI
Does it support PoE?
No. H3C does not list a 16-port PoE model in the S5120V3-LI family; the 8-port S5120V3-10P-PWR-LI and the 24-port PWR/HPWR models carry PoE+.
Is it a Layer 3 switch?
Yes. H3C lists static routing, RIPv1/v2, RIPng and OSPFv1/v2/v3 for the S5120V3-LI series.
Can I stack it?
Yes. IRF2 stacks up to 9 switches through standard Ethernet ports, with up to 16 Gbps stacking bandwidth on this model.
Is it fanless?
Yes, H3C lists it as fan-less, so it runs silently.
What warranty do I get?
5 years local warranty in Singapore, supplied by SourceIT with a GST invoice.
