# Rack rail kit HP 874578-B21 — rack accessory, 1U capacity, 890×394×263.9 mm

**URL:** https://aio.lv/en/product--hp-874578-b21--5026956
**Data updated:** 2026-03-07 15:10 (EET)
**Category:** Server Parts & Components
**Manufacturer:** HP
**Manufacturer code:** 874578-B21
**EAN:** 190017211527
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 385.49 €
**Prices and availability valid until:** 2026-08-09 23:59
**Price without VAT (21%):** 318.59 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-874578-b21--5026956

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 31.07.2026 | free |
| Pickup points | 05.08.2026 | 1.89 EUR |
| Courier delivery to door | 05.08.2026 | 10.78 EUR |

## Summary description

Rack rail kit HP 874578-B21 is a rack accessory designed for mounting HPE ProLiant servers. It provides a 1U rack capacity and physical dimensions of 890 mm (width) × 394 mm (depth) × 263.9 mm (height). Supplied as a single-piece pack, the kit ensures secure installation of compatible servers in standard server racks.

## Long description

Rack rail kit HP 874578-B21 is a rack accessory designed to mount compatible HPE ProLiant servers and convert some tower systems into rack-mounted units. The kit provides a 1U rack capacity and has physical dimensions of 890×394×263.9 mm (width × depth × height). Supplied as a single-piece pack, this rail kit offers a tray-style shelf intended for specific ML Gen10 servers and fits standard 19-inch server racks.
Advantages
This rack rail kit delivers a compact 1U footprint, allowing efficient use of rack space. The tray-style design supports straightforward insertion and positioning of compatible servers. The kit is supplied complete as a single pack for one installation and is built to match the mounting requirements of the targeted HPE systems. Its fixed-dimension construction ensures predictable clearance and alignment when installed in standard rack cabinets.
Suitable for
 Mounting HPE ProLiant ML Gen10 servers that are compatible with the tray shelf design
 Converting supported tower servers to a 1U rack installation
 Deployments that require a simple fixed tray shelf without sliding rails or cable management arm functionality
Key specifications
 Rack capacity: 1U
 Dimensions (W×D×H): 890 × 394 × 263.9 mm
 Form factor: tray-style rack shelf for standard 19-inch racks
 Pack contents: single-piece kit for one installation
 Compatibility note: designed for certain HPE ProLiant ML Gen10 systems (tray-only function)
How to use
Install the rack rail tray into a standard 19-inch rack by aligning the tray with the rack rails at the required U position and securing the kit according to rack-mounting points. Position the compatible server onto the tray and fasten it following the server manufacturer’s mounting instructions. Verify clearance and airflow after installation to ensure the server operates within recommended environmental conditions.
Usage recommendations
Use this kit only with servers explicitly listed as compatible (for example supported ML Gen10 models). The conversion kit provides tray functionality only and does not include sliding rails or a cable management arm; if sliding access or cable arm support is required, choose a different rack accessory designed for those features.

## Specifications

| Feature | Value |
|---|---|
| Type | Rack rail kit |
| Weight | 13.27 kg |
| Compatibility | HPE ProLiant servers |
| Height | 263.9 mm |
| Width | 890 mm |
| Depth | 394 mm |
| Rack capacity | 1U |
| Quantity per pack | 1 pc(s) |
| Harmonized System (HS) code | 85389099 |

## FAQ

### How much does the Rack rail kit HP 874578-B21 cost, and is it available for purchase?

The price is 385.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 31.07.2026 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. All transactions are 100% secure and encrypted.

### Can Rack rail kit HP 874578-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/5026956/59283069_large.webp