189081-B21 Compaq 1GB Kit (4 x 256MB) 100MHz PC100 ECC Registered CL2 168-Pin DIMM Memory for ProLiant ML570 / DL580

The 189081‑B21 memory kit delivers the stability and speed required for demanding server environments, ensuring your ProLiand ML570 and DL580 systems run smoothly under heavy workloads. Engineered with error‑correcting technology, it safeguards data integrity and minimizes downtime, making it ideal for mission‑critical applications. Its registered design provides consistent performance across multiple modules, while the proven compatibility guarantees a hassle‑free installation. Whether you’re expanding capacity or upgrading existing infrastructure, this reliable memory solution enhances overall system responsiveness and supports the rigorous demands of modern enterprise computing.