PoE Switches- 4× GbE PoE
- 65 W budget
- Fan-less
HPE Networking · PoE Switches
S5E27A – HPE Networking Instant On Switch 8p Gigabit CL4 PoE 2p SFP 124W 1840
Eight-port fan-less PoE switch with every port powered, a 124 W budget and two dedicated 1G SFP uplinks — the fullest 8-port model in the series.
PricingContact for Best Price
- Ports
- 8× GbE PoE (all ports)
- Uplinks
- 2× 1G SFP (ports 9–10)
- PoE budget
- 124 W
- Per-port PoE
- Up to 30 W (Class 4 / 802.3at)
- Switching capacity
- 20 Gbps
- Cooling
- Fan-less
- 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 S5E27A is built to do
Technical Specifications
S5E27A specifications
Specifications as published for this model. Confirm project-critical values against the datasheet before ordering.
| Ports | |
|---|---|
| PoE ports | 8× RJ-45 autosensing 10/100/1000BASE-T with IEEE 802.3at Class 4 PoE (ports 1–8) |
| Uplink | 2× SFP 1GbE ports (ports 9–10) |
| 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 | |
|---|---|
| Total PoE budget | 124 W Class 4 PoE |
| Per-port maximum | Up to 30 W (IEEE 802.3at) |
| Legacy support | IEEE 802.3af devices up to 15.4 W |
| Power allocation | LLDP-MED automatic, class of PoE, or usage-based |
| Scheduling | PoE scheduling and port scheduling |
| Performance | |
|---|---|
| Switching capacity | 20 Gbps |
| Throughput | 14.88 Mpps @ 64-byte packets |
| Latency (100 Mb, LIFO) | < 10.3 µs |
| Latency (1000 Mb, LIFO) | < 6.2 µs |
| MTBF | 153 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 | 8 (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) | 11.65 × 11.61 × 1.73 in (29.60 × 29.50 × 4.40 cm) |
| Weight | 4.81 lb (2.18 kg) |
| Fans | Fan-less |
| Electrical | |
|---|---|
| Power supply type | Internal power supply |
| AC voltage | 100–127 VAC / 200–240 VAC |
| Frequency | 50 Hz / 60 Hz |
| Current | 1.5 / 0.8 A |
| Power consumption (100% traffic) | 100–127 V: 13.5 W; 200–220 V: 12.7 W |
| Power consumption (100% traffic + 100% PoE) | 100–127 V: 146.4 W; 200–220 V: 142.7 W |
| Power consumption (idle) | 100–127 V: 9.0 W; 200–220 V: 8.6 W |
| Heat dissipation (100% traffic + 100% PoE) | 100–127 V: 499.3 BTU/hr, 526.8 kJ/hr; 200–220 V: 487.0 BTU/hr, 513.8 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 S5E27A
The HPE Networking Instant On Switch 8p Gigabit CL4 PoE 2p SFP 124W 1840 (S5E27A) is the most capable eight-port model in the Series 1840: all eight RJ-45 ports supply IEEE 802.3at Class 4 PoE within a 124 W budget, and two dedicated 1G SFP ports provide fibre uplinks in addition to the copper ports.
Two things separate it from the S5E26A. Every access port is powered rather than half of them, and the SFP pair means uplinks do not consume access capacity — an eight-port switch stays an eight-port switch even after the fibre run to the main rack is connected. Switching capacity rises accordingly to 20 Gbps with a 14.88 Mpps forwarding rate.
It remains fan-less despite the higher power budget, so it can be deployed in occupied rooms. This is the model to specify for a small site that needs fibre back to a central rack — a remote building, a mezzanine office, or a floor where copper distance limits rule out an RJ-45 uplink.
Applications
Where the S5E27A is deployed
Downloads
S5E27A 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 S5E27A
Edge PoE switches below it, SFP+ modules in its uplinks, and sibling models for smaller or larger sites.
- PoE Switches
PoE Switches- 16× GbE PoE
- 195 W budget
- 4× SFP
Managed Switches- 8× GbE
- Class 3 PD input
- Fan-less
Before You Enquire
Frequently asked questions
Do all eight ports on the S5E27A supply PoE?
Yes. All eight RJ-45 ports supply IEEE 802.3at Class 4 PoE at up to 30 W each, within a 124 W total budget. The two SFP ports are fibre uplinks and do not carry power.
Which SFP transceivers work with the S5E27A?
HPE lists four Instant On transceivers for the Series 1840: R9D16A (1G SFP LC SX 500 m OM2 MMF), S0G20A (1G LX SFP LC 10 km SMF), and R9D17A / R9D17B (1G SFP RJ45 100 m Cat5e).
Browse SFP modulesCan the 124 W budget power eight devices at once?
It depends on draw. 124 W across eight ports averages 15.5 W per port, which covers most access points and cameras. Eight devices each drawing the full 30 W would exceed the budget; LLDP allocation and PoE priority determine which ports are served first.
S5E27A or S5E29A — which should I specify?
The S5E27A is an eight-port fan-less unit with a 124 W budget and two SFP uplinks. The S5E29A is a 24-port rack model with 16 PoE ports, a 195 W budget and four SFP uplinks. Choose by port count first: eight powered drops versus sixteen.
Compare the S5E29AIs the S5E27A fan-less?
Yes, despite the 124 W PoE budget. All three 8-port models in the Series 1840 are fan-less, making them suitable for occupied rooms.
What is the price of the HPE S5E27A in India?
Pricing is quotation-based with dealer slabs for registered partners. Name the S5E27A and quantity in a quote request and you receive priced options with confirmed availability within 24 working hours.
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