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Silver 2.5 inch enterprise hard drive with SAS connector

Toshiba

Toshiba AL15SEB120N 1.2TB 10000 RPM SAS 12Gb/s 2.5" internal hard drive

SKU CH-XA79-G1YFK MPN AL15SEB120N

Enterprise-grade 1.2TB SAS drive spins at 10000 RPM with a 128MB cache for mission-critical server workloads

  • Total capacity1.2 TB
  • Interface typeSAS 12Gb/s
  • Form factor2.5 in (6.35 cm)
  • Flash memory typeHard Drive
  • Rotational speed10,000 RPM
  • Cache memory128 MB
  • 2 TB capacity supports large enterprise datasets
  • 10000 RPM spindle speed delivers fast data access
  • 128 MB cache buffers heavy workloads
  • SAS 12Gb/s interface enables high-throughput connectivity
  • 512 native sector format ensures broad OS compatibility

Enterprise 1.2TB SAS Drive

The Toshiba AL15SEB120N is a 1.2TB 2.5-inch internal hard drive built for enterprise storage systems. It spins at 10,000 RPM and connects through a SAS 12Gb/s interface with a 128MB cache. The 512 native sector format supports compatibility with demanding server applications.

Suited For Mission Critical Servers

This drive targets IT operations that need sustained 10.5K RPM performance for database servers and hybrid storage platforms. Persistent Write Cache technology helps protect data during unexpected power loss. Buyers needing capacities above 1.2TB or a different sector format such as 512e or 4Kn should look at other models.

SAS 12Gb/s Interface Decides Fit

The single specification that determines whether this is the right part is the SAS 12Gb/s interface. The drive requires a server or controller that supports this exact connection standard. Without a compatible SAS backplane or HBA the drive cannot function in the system.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $208.99
Pricier than about 70% of the 4,938 comparable items (median $107.99).
Total capacity 1.2 TB
Lower than about 58% of the 2,372 comparable items (median 2 TB).
Price per TB $174.16 per TB
Pricier than about 75% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameToshiba
Product lineAL Series
Model nameAL15SEB120N
Total capacity1.2 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed10,000 RPM
Storage
Flash memory typeHard Drive
Cache memory128 MB
Ports & slots
Interface typeSAS 12Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Shipping weight0.91 kg
Package size102 × 102 × 25 mm

Questions about this item

Does my server backplane or controller need to support 12.0 Gbit/s SAS for this AL15SEB120N to work?

Yes, the drive uses a 12.0 Gbit/s SAS interface and requires a compatible controller or backplane that supports this signalling rate.

Can I keep my existing 6 Gbit/s SAS drives in the same enclosure while adding this 12.0 Gbit/s model?

The AL15SEB120N will negotiate down to the speed supported by the backplane, so it can coexist with 6 Gbit/s drives on a shared domain.

How can I verify the 10 500 rpm spindle speed and 128 MB cache are active after installation?

Check the drive’s reported rotational speed and cache size in your RAID controller BIOS or operating system utilities such as smartctl.

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