PoE Switches- 16× GbE PoE
- 195 W budget
- 4× SFP
HPE Networking · Managed Switches
S5E28A – HPE Networking Instant On Switch 24p Gigabit 4p SFP 1840
Twenty-four port fan-less smart-managed gigabit switch with four 1G SFP uplinks — rack density without PoE cost or fan noise.
PricingContact for Best Price
- Ports
- 24× GbE RJ45 (ports 1–24)
- Uplinks
- 4× 1G SFP (ports 25–28)
- PoE
- None
- Switching capacity
- 56 Gbps
- Acoustics
- 3.1 Bel LWAd / 18 dB LpAm
- Mounting
- 1U rack, 2-post kit included
- Ready Stock
- PAN India Supply
- Same Day Dispatch*
- GST Billing
- BOQ Assistance
*Same-day dispatch applies to in-stock items ordered before cut-off from the Delhi NCR warehouse.
Key Features
What the S5E28A is built to do
Technical Specifications
S5E28A specifications
Specifications as published for this model. Confirm project-critical values against the datasheet before ordering.
| Ports | |
|---|---|
| Access ports | 24× RJ-45 autosensing 10/100/1000BASE-T (ports 1–24) |
| Uplink | 4× SFP 1GbE ports (ports 25–28) |
| Standards | IEEE 802.3 Type 10BASE-T, IEEE 802.3u Type 100BASE-TX, IEEE 802.3ab Type 1000BASE-T |
| Duplex | 10BASE-T/100BASE-TX: half or full; 1000BASE-T: full only |
| Console port | Not available |
| PoE | |
|---|---|
| PoE output | None — this model does not supply PoE |
| PoE alternative | See the S5E29A for a 24-port model with 16 PoE ports at 195 W |
| Performance | |
|---|---|
| Switching capacity | 56 Gbps |
| Throughput | 41.66 Mpps @ 64-byte packets |
| Latency (100 Mb, LIFO) | < 10.3 µs |
| Latency (1000 Mb, LIFO) | < 6.2 µs |
| MTBF | 175 years |
| Scale | |
|---|---|
| MAC address table | 16K entries |
| Maximum VLANs | 64 |
| IGMP groups | 1K groups |
| Jumbo frames | Up to 9216 bytes |
| IPv4/MAC ACL entries (ingress) | 50 |
| IPv4/MAC ACL entries (egress) | Unsupported |
| Maximum ACEs | 2048 |
| Link aggregation groups | 16 (4 members per group) |
| Processor and Memory | |
|---|---|
| Processor | ARM Cortex-A9 @ 1.2 GHz |
| SDRAM | 1 GB DDR4 |
| Flash | 256 MB NAND |
| Packet buffer | 512 KB |
| Physical | |
|---|---|
| Dimensions (D × W × H) | 12.05 × 17.48 × 1.73 in (30.60 × 44.40 × 4.40 cm) |
| Weight | 6.60 lb (2.99 kg) |
| Fans | 1 fixed fan, non field-replaceable |
| Primary airflow | Left to right |
| Acoustics | Sound power LWAd = 3.1 Bel; bystander sound pressure LpAm = 18 dB |
| Mounting | EIA-standard 19 in. rack or cabinet (2-post kit included); table-top; wall; under-table |
| Electrical | |
|---|---|
| Power supply type | Internal power supply |
| AC voltage | 100–127 VAC / 200–240 VAC |
| Frequency | 50 Hz / 60 Hz |
| Current | 0.4 / 0.3 A |
| Power consumption (100% traffic) | 100–127 V: 19.8 W; 200–220 V: 19.9 W |
| Power consumption (idle) | 100–127 V: 4.8 W; 200–220 V: 5.0 W |
| Heat dissipation (100% traffic) | 100–127 V: 67.6 BTU/hr, 71.3 kJ/hr; 200–220 V: 67.9 BTU/hr, 71.6 kJ/hr |
| Environment | |
|---|---|
| Operating temperature | 32 °F to 104 °F (0 °C to 40 °C) |
| Storage temperature | −40 °F to 158 °F (−40 °C to 70 °C) |
| Operating humidity | 15% to 95% @ 104 °F (40 °C), non-condensing |
| Storage humidity | 15% to 95% @ 140 °F (60 °C), non-condensing |
| Altitude | Up to 10,000 ft (3 km) |
| Layer 2 Switching | |
|---|---|
| Spanning tree | 802.1D STP, 802.1w RSTP, BPDU filtering, loop protection |
| Link aggregation | LACP or manual, up to 16 trunks, max 8 ports per trunk |
| Multicast | IGMP v1, v2 snooping |
| Discovery | LLDP and LLDP-MED |
| QoS | CoS by DSCP or IEEE 802.1p, four hardware queues |
| Monitoring | Port mirroring by port or VLAN |
| Auto recovery | BPDU Guard, Storm Control, Port Security, Loop Protection, Link Flap Prevention |
| Management | |
|---|---|
| Options | Instant On Cloud Portal; Mobile App; Web Browser; SNMP Manager |
| SNMP | SNMPv1, v2c (read only) |
| Local web sessions | Up to 5 HTTP / HTTPS |
| File transfer | SCP and TFTP; dual image support (primary and secondary) |
| Diagnostics | Event logs, session logging, remote syslog, cable diagnostics, Ping IPv4 |
| Security | |
|---|---|
| Hardware root of trust | TPM 2.0 |
| DoS protection | Automatic denial-of-service protection |
| Storm control | Global Storm Control |
| Cloud account | Two-Factor Authentication (2FA) |
| Management encryption | HTTPS / SSL |
| Supported Transceivers | |
|---|---|
| R9D16A | Instant On 1G SFP LC SX 500 m OM2 MMF transceiver |
| S0G20A | Instant On 1G LX SFP LC 10 km SMF transceiver |
| R9D17A / R9D17B | Instant On 1G SFP RJ45 100 m Cat5e transceiver |
| Compliance & Warranty | |
|---|---|
| Safety | EN/IEC 62368-1 2nd & 3rd Ed.; UL 62368-1 3rd Ed.; CAN/CSA C22.2 No. 62368-1 3rd Ed.; EN/IEC 60825-1:2014 Class 1 |
| Emissions | EN 55032:2015/CISPR 32 Class A; FCC CFR 47 Part 15:2018 Class A; ICES-003 Class A; VCCI-32 Class A; CNS 13438 Class A; KS C 9832 Class A; AS/NZS CISPR 32 Class A |
| Immunity | BS/EN 55035, CISPR 35, KS C 9835; IEC 61000-4-2/-3/-4/-5/-6/-8/-11 |
| Warranty | HPE Networking Instant On limited lifetime; 24x7 phone support for 90 days, chat support for the warranty period |
Specifications sourced from the official HPE Networking catalogue. Where official pages disagree on a value, it is marked and confirmed during quotation.
Overview
About the S5E28A
The HPE Networking Instant On Switch 24p Gigabit 4p SFP 1840 (S5E28A) is a 24-port smart-managed Layer 2 gigabit switch with four dedicated 1G SFP uplink ports and no Power over Ethernet. Switching capacity is 56 Gbps with a 41.66 Mpps forwarding rate.
It is the value model of the 24-port pair. Where a floor needs two dozen wired drops for desktops, printers and unpowered devices — and the access points are powered from elsewhere or use their own injectors — paying for a 195 W PoE stage adds cost and heat for no benefit. Dropping PoE also drops the fan count to one, and this is the only 24-port model in the series that HPE rates as fan-less.
It mounts in an EIA-standard 19-inch rack with a 2-post kit included, and also supports table-top, wall and under-table mounting. Link aggregation scales to 16 groups here, double the 8-port models, which matters when trunking several SFP uplinks to a core switch.
Applications
Where the S5E28A is deployed
Downloads
S5E28A documents
Datasheets and manuals are shared without sign-up. Documents not yet hosted online are sent on request within working hours.
- HPE Networking Instant On Switch Series 1840 QuickSpecs (PDF)Download
Related Products
Pairs with the S5E28A
Edge PoE switches below it, SFP+ modules in its uplinks, and sibling models for smaller or larger sites.
- PoE Switches
Managed Switches- 48× GbE
- 4× SFP
- 104 Gbps
PoE Switches- 8× GbE PoE
- 124 W budget
- 2× SFP
Before You Enquire
Frequently asked questions
Does the S5E28A supply PoE?
No. All 24 ports are standard gigabit copper with no power. For a 24-port model with PoE, the S5E29A provides 16 Class 4 PoE ports within a 195 W budget.
Compare the S5E29AAre the four SFP ports shared with copper ports?
No. The four 1G SFP ports (25–28) are dedicated and additional to the 24 copper ports, so using fibre uplinks does not reduce the number of available access ports.
How noisy is the S5E28A?
HPE rates it at 3.1 Bel declared sound power and 18 dB mean bystander sound pressure — the quietest of the four rack models in the series. It has one fixed, non field-replaceable fan with left-to-right airflow.
How many link aggregation groups does the S5E28A support?
16 groups with up to 4 members each, double the 8 groups on the 8-port models. That headroom is what makes trunking several SFP uplinks to a core switch practical.
Is a rack kit included with the S5E28A?
Yes. A 2-post rack kit is included for EIA-standard 19-inch racks and cabinets. Table-top, wall and under-table mounting are also supported.
What is the price of the HPE S5E28A in India?
Pricing is quotation-based with dealer slabs for registered partners. Name the S5E28A and quantity in a quote request and you receive priced options with confirmed availability within 24 working hours.
Request pricingTell us what you need — get a quote today
Four fields, no account, no attachments needed. Our sales team calls back within working hours with pricing and stock status.
Send your requirement, get a quote today
Share a BOQ, a part list, or just a description of the site — our sales team responds within working hours with pricing and stock confirmation.
Prefer to talk? +91 98910 20998