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Cisco

Cisco UCS-HD18TW7KL4KN | 18TB 3.5in LFF HDD | 12Gb/s SAS | 7200 RPM | 4Kn sector format

SKU:UCS-HD18TW7KL4KN

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Description

High-capacity 18TB enterprise hard drive for SAS backplanes, delivering dependable 7200 RPM performance in a 3.5-inch LFF form factor with 12Gb/s SAS and 4Kn sector format for modern filesystems and storage controllers. Ideal for scale-out, backup, and archival storage where capacity density and reliability matter.

Features

- Massive 18TB capacity for dense storage pools
- 12Gb/s SAS interface for robust, enterprise connectivity
- 3.5-inch LFF design compatible with common server bays
- 4Kn sector format optimized for modern storage stacks
- 7200 RPM performance tuned for capacity-driven workloads

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Is this drive 4Kn or 512e?
A: It uses a 4Kn (4096-byte native) sector format. Ensure your OS, HBA/RAID controller, and storage stack support 4Kn.

Q: Can I use this in a SATA-only backplane?
A: No. A SAS-capable backplane and controller are required.

Q: Can I mix this 4Kn drive with 512e drives in the same array?
A: Mixing sector formats in the same virtual disk or array is not recommended and often unsupported. Keep 4Kn drives together.

Q: What workloads is a 7200 RPM 18TB drive best suited for?
A: Capacity-centric workloads such as backup, archival, file repositories, video storage, and scale-out storage tiers.

Q: Does the drive support hot-swap?
A: Hot-swap support depends on the server/backplane and caddy implementation. The drive itself is designed for enterprise hot-plug bays when supported by the chassis.

Technical Specifications

- Capacity: 18 TB
- Interface: SAS 12Gb/s
- Form factor: 3.5-inch (LFF)
- Spindle speed: 7200 RPM
- Sector format: 4Kn (4096-byte native)
- Drive class: Enterprise HDD
- Bay requirement: SAS backplane/controller
- Use cases: Capacity-oriented workloads, backup, archival

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