# Battery-backed write cache module HP 128MB (HP 128MB Battery-Backed Write)

**URL:** https://aio.lv/en/product--hp-rp000115642--11647257
**Data updated:** 2026-02-16 07:00 (EET)
**Category:** Computer Component Accessories
**Manufacturer:** HP
**Manufacturer code:** RP000115642
**EAN:** 5712505677100
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 11.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-rp000115642--11647257

## 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 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

HP 128MB Battery-Backed Write is a battery-backed cache module designed to protect cached write data during power loss. With 128 MB of cache capacity, it integrates into compatible HP storage controllers to preserve in-flight write operations, reduce risk of data corruption, and improve write performance under typical workloads. Ideal for server and storage environments that require data integrity and short-term power protection.

## Long description

HP 128MB Battery-Backed Write is a cache module with integrated battery backup designed to protect cached write data during unexpected power interruptions. With 128 MB of cache capacity, the module supplements compatible HP storage controllers to preserve data that has been acknowledged to the host but not yet written to persistent media. It helps reduce the risk of write corruption and supports sustained write performance in environments where brief power loss or controller resets may occur.
Advantages
The battery-backed cache maintains volatile write data in the controller until power is restored or the data is safely committed to disk, providing short-term protection without relying on external UPS systems for immediate persistence. The 128 MB capacity offers a balance between protecting in-flight writes and minimizing resource overhead on supported HP controllers. Integration with controller firmware enables automatic failover of cached data to non-volatile storage once power returns, reducing the likelihood of data loss and minimizing recovery time after an outage.
Suitable for
Server environments running transactional databases or virtual machines that require short-term protection of pending writes
Storage arrays and RAID controllers where preserving write integrity during brief power interruptions is important
Systems requiring improved write performance under normal workloads while maintaining data integrity safeguards
Key specifications
Cache capacity: 128 MB of battery-backed DRAM designed for controller write caching
Function: Protects cached write data during power loss and controller resets
Compatibility: Designed for integration with compatible HP storage controllers and firmware that support battery-backed write cache
Purpose: Short-term power protection to preserve in-flight write operations and reduce write corruption risk
How to use
Install the module into the designated slot on a compatible HP storage controller according to the controller manufacturer’s installation instructions and guidelines. After physical installation, verify that the controller firmware recognizes the battery-backed cache and enable the write cache feature in the controller management utility if required. Monitor controller status indicators and management logs to confirm battery health and cache operation. Replace the battery module following the vendor-recommended maintenance schedule or when diagnostics indicate reduced battery capacity.
Usage recommendations
Use the battery-backed write cache as part of a broader data protection strategy that includes regular backups and appropriate uninterruptible power systems. Periodically check firmware updates for the controller to ensure compatibility and optimal operation. When planning maintenance or replacement, follow safe shutdown procedures and consult HP documentation to avoid data loss during module handling.

## FAQ

### How much does the HP 128MB Battery-Backed Write cache module cost, and is it available for purchase?

The price is 14.49 € (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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