# Server hot-plug module HP 8SFF for 4U Gen8 (674841-B21-RFB)

**URL:** https://aio.lv/en/product--hp-674841-b21-rfb--11367460
**Data updated:** 2026-01-12 19:34 (EET)
**Category:** Server Parts & Components
**Manufacturer:** HP
**Manufacturer code:** 674841-B21-RFB
**EAN:** 5704174209393
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 76.49 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 63.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-674841-b21-rfb--11367460

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

Hot-plug drive module designed for HP 4U Gen8 servers with 8SFF drive bays. The unit provides hot-swap capability for small form factor (SFF) drives, enabling maintenance, upgrades or replacements without powering down the server. Intended for data centers and enterprise environments where uptime and quick drive serviceability are required.

## Long description

HP 8SFF hot-plug module (674841-B21-RFB) is a drive carrier assembly designed for HP 4U Gen8 server chassis. It supports eight small form factor (SFF) drives and provides hot-swap capability so individual drives can be installed, removed or replaced without powering down the server. The unit is intended for use in data centers and enterprise environments where high availability, drive serviceability and minimal downtime are required. The module fits the specified HP 4U Gen8 models and matches HP mechanical and electrical interfaces for SFF drive bays.
Advantages
The hot-plug module enables maintenance and drive replacement while keeping the server operational, reducing planned and unplanned downtime. It supports standard 2.5-inch SFF drives and aligns with HP Gen8 chassis mounting points to ensure a secure fit and consistent airflow. The assembly is supplied under the HP part number 674841-B21-RFB and is compatible with systems that use HP 8SFF drive backplanes for Gen8 4U enclosures.
Suitable for
Data center servers requiring hot-swap drive serviceability
Enterprise storage and RAID configurations using 2.5" SFF drives
Maintenance workflows that require replacing drives without downtime
Service technicians and system integrators working with HP 4U Gen8 chassis
Key specifications
Brand: HP
Manufacturer part number (MPN): 674841-B21-RFB
EAN: 5704174209393
Form factor: 8 x SFF (2.5") drive bays for HP 4U Gen8 chassis
Function: Hot-plug / hot-swap drive module
Compatible platform: HP Gen8 4U server enclosures with 8SFF backplane
How to use
Install the module into the designated front bay of the HP 4U Gen8 chassis following HP service manual procedures. Secure the module with the provided retention points, connect to the server backplane if separate, and verify that the server recognizes the drive module and attached drives in system firmware or operating system storage management tools. To replace a drive, use the drive carrier latches to remove the target SFF drive while the system is running and insert the replacement drive until it seats fully and the latch engages.
Usage recommendations
Before performing any installation or drive replacement, consult the server's maintenance and safety documentation. For environments with critical uptime, verify RAID rebuild policies and have spare drives available. Use compatible HP-certified SFF drives and follow electrostatic discharge (ESD) precautions when handling the module and drives.

## FAQ

### How much does the HP 8SFF Hot Plug Module for 4U Gen8 cost, and is it available for purchase?

The price is 76.49 € (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 09.07.2026 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. 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 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

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