# Slot expander HP 870549-B21, SAS interface, fits HPE ProLiant DL380/ DL560/ ML350 Gen9 and DL380 Gen10, dimensions 168×111×15 mm

**URL:** https://aio.lv/en/product--hp-870549-b21--5018775
**Data updated:** 2026-03-07 15:10 (EET)
**Category:** Other goods
**Manufacturer:** HP
**Manufacturer code:** 870549-B21
**EAN:** 190017113852
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1 008.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 833.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-870549-b21--5018775

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.89 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

HP 870549-B21 is a slot expander with a SAS interface designed for HPE ProLiant servers. It is compatible with ProLiant DL380 Gen9, DL560 Gen9, ML350 Gen9 and DL380 Gen10 models. The unit measures 168 × 111 × 15 mm and provides additional internal expansion capability for storage and controller connections in rack servers.

## Long description

HP 870549-B21 is a slot expander with a 12Gb/s SAS interface designed to expand internal storage connectivity in HPE ProLiant servers. Compatible with ProLiant DL380 Gen9, DL560 Gen9, ML350 Gen9 and DL380 Gen10, the expander increases the number of supported internal drives when paired with a supported Smart Array or Smart HBA controller. The unit's compact full-height form measures 168 × 111 × 15 mm and installs into the server chassis to provide additional SAS ports for controllers and storage enclosures.
Advantages
The slot expander supports 12Gb/s SAS links to maintain high-throughput connections between controllers and drives, enabling more internal drive bays without replacing the server controller. It integrates with HPE ProLiant Gen9 and Gen10 platforms and, when used with a compatible Smart Array or Smart HBA controller, allows support for up to 28 internal drives. The slim full-height card design conserves chassis space while delivering additional internal connectivity for storage expansion.
Suitable for
Data center servers requiring increased internal drive capacity
Enterprise environments adding more HDDs or SSDs without changing the host controller
IT deployments consolidating storage inside HPE ProLiant DL380, DL560 or ML350 chassis
Maintenance or upgrade tasks where additional SAS ports are needed for controllers
Key specifications
Interface: 12Gb/s SAS expander
Supported platforms: HPE ProLiant DL380 Gen9, DL560 Gen9, ML350 Gen9, DL380 Gen10
Maximum supported internal drives (with compatible controller): up to 28 drives
Form factor: full-height expander card
Dimensions: 168 × 111 × 15 mm
How to use
Install the slot expander into the designated expansion slot inside the HPE ProLiant chassis following the server manufacturer's service manual. Connect the expander to a supported Smart Array or Smart HBA controller using the appropriate internal SAS connectors and route drive backplane or cable connections as required. After physical installation, verify firmware and controller compatibility, then power on the server and check system firmware/BIOS and controller management utilities to confirm the expander and attached drives are recognized.
Usage recommendations
Use this SAS expander together with HPE-supported Smart Array or Smart HBA controllers and ensure firmware levels on the server, controller and expander are kept up to date. Plan drive population and cooling within the chassis to maintain performance and reliability when increasing internal drive counts.

## Specifications

| Feature | Value |
|---|---|
| Interface | SAS |
| Dimensions (WxDxH) | 168 x 111 x 15 |
| Compatibility | HPE ProLiant DL380 Gen9
HPE ProLiant DL560 Gen9
HPE ProLiant ML350 Gen9
HPE ProLiant DL380 Gen10
HPE ProLiant DL560 Gen10 |

## FAQ

### How much does the Slot expander HP 870549-B21 cost, and is it available for purchase?

The price is 1,008.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 20.07.2026 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, Installment, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can Slot expander HP 870549-B21 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 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 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

## Image

https://aio.lv/img/cache/product/5018775/59275548_large.webp