# PoE adapter HPE R8W31A

**URL:** https://aio.lv/en/product--hp-enterprise-r8w31a--4332524
**Data updated:** 2025-12-29 16:02 (EET)
**Category:** PoE Adapters
**Manufacturer:** HP Enterprise
**Manufacturer code:** R8W31A
**EAN:** 190017561264
**Warranty:** 1 Year
**Availability:** Available for order
**Price:** 43.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 35.94 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-enterprise-r8w31a--4332524

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

The HPE R8W31A PoE adapter provides 48 V power over Ethernet with a maximum output of 15.4 W. It supports IEEE 802.3af networking standards and is certified by CE, FC, VCI, cUL US, UL GS, and EAC. With an input voltage range of 100 - 240 V, it is compact with dimensions of 36 mm width, 51 mm depth, and 16 mm height. Ideal for powering devices in a network environment.

## Long description

The HPE R8W31A PoE adapter supplies 48 V power over Ethernet with a maximum output of 15.4 W and supports the IEEE 802.3af standard. Designed for use with select Aruba Instant small business products, this compact midspan injector accepts 100–240 V AC input and carries multiple safety and compliance certifications (CE, FCC, VCI, cUL US, UL GS, EAC). Its small footprint makes it suitable for constrained installation locations.
Advantages
The adapter delivers standard-compliant PoE power (48 V, up to 15.4 W) in a compact form factor, simplifying deployment where dedicated PoE switches are not available. Broad input voltage range (100–240 V) and common safety certifications ensure compatibility with international installations. The device is lightweight and easy to integrate into existing network setups.
Suitable for
 Powering Aruba Instant small business access points and other 802.3af-compatible devices
 Adding PoE capability to non-PoE network ports
 Small office or branch installations with limited space
Key specifications
 Model: HPE R8W31A
 Protocol: IEEE 802.3af (PoE)
 Output voltage: 48 V
 Maximum output power: 15.4 W
 Input voltage: 100–240 V AC
 Certifications: CE, FCC, VCI, cUL US, UL GS, EAC
 Dimensions (W×D×H): 36 × 51 × 16 mm
 Weight: 0.1996 kg
 MPN: R8W31A
 EAN: 190017561264
How to use
Connect the adapter to an AC mains outlet (100–240 V), then link the Ethernet output to the powered device or switch port. Ensure the connected device supports IEEE 802.3af PoE. Follow standard safety practices when installing near other network equipment and verify that the device being powered does not require more than 15.4 W.
Usage recommendations
Use this PoE adapter to provide power to single Aruba Instant or other 802.3af devices where a PoE switch is not available; avoid using it with devices that require higher-power PoE standards (e.g., 802.3at/af+). Install in a ventilated area and confirm cable and connector integrity before powering devices.

## Specifications

### Power

| Feature | Value |
|---|---|
| Input voltage | 100 - 240 |
| Input frequency | 50/60 |
| Input current | 0.43 |
| Output current | 0.35 A |
| Power over Ethernet (PoE) voltage | 48 V |
| Output power | 15.4 W |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.1996 kg |
| Height | 16 mm |
| Width | 36 mm |
| Depth | 51 mm |

### Packaging content

| Feature | Value |
|---|---|
| Number of products included | 1 pc(s) |

### Network

| Feature | Value |
|---|---|
| Networking standards | IEEE 802.3af |
| Power over Ethernet (PoE) | Yes |

### Certificates

| Feature | Value |
|---|---|
| Certification | CE, FC, VCI, cUL US, UL GS, EAC |

### Sustainability

| Feature | Value |
|---|---|
| Sustainability certificates | RoHS |

## FAQ

### How much does the PoE adapter HPE R8W31A cost, and is it available for purchase?

The price is 43.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 02.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All HP Enterprise products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized HP Enterprise service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: power over ethernet (poe) voltage, weight, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/4332524/54637044_large.webp