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Black 3U rack-mount tape library with 40 slots and front cartridge magazine

HPE

HPE MSL3040 Tape Library 40-slot 1x LTO-9 SAS 20x 45TB cartridges P77037-B25

SKU CH-CHK5-5DSPX MPN P77037-B25

40-slot LTO-9 tape library with one SAS drive and 20 cartridges delivering 900 TB compressed capacity

  • TypeData Cartridges
  • ColorBlack
  • SpecificationsTransfer rate: 300 MB/s Number of cartridge slots: 40 slots
  • 40 cartridge slots for high-density archival storage
  • 1 LTO-9 SAS drive included, expandable to 3 drives
  • 900 TB compressed capacity with 20 included 45 TB cartridges
  • Hardware encryption protects data at rest
  • Scales to 28.8 PB with up to 15 expansion modules

HPE MSL3040 40-slot tape library

The HPE MSL3040 is a rack-mountable tape library designed for organisations that need offline, air-gapped archival storage with hardware encryption. It ships with one half-height LTO-9 SAS drive and twenty LTO-9 cartridges, providing a ready-to-deploy solution for long-term data retention and ransomware protection.

Single LTO-9 SAS drive at 12 GB/s

The library includes one half-height LTO-9 drive connected via a 12 GB/s SAS host interface, delivering a native transfer rate of 300 MB/s. This single drive is the throughput bottleneck; backup windows and restore times scale directly with its performance, so environments requiring higher concurrent stream counts must add up to two additional half-height drives.

900 TB compressed capacity with 15-module expansion

The base module holds 40 cartridges for 900 TB of compressed capacity using the included 45 TB media. The platform supports up to 15 expansion modules, scaling the total compressed capacity to 28.8 PB. The 40-slot base covers modest archive workloads, while larger datasets will require additional modules and drives to avoid slot and throughput exhaustion.

Highlights

  • 40 cartridge slots for high-density archival storage
  • 1 LTO-9 SAS drive included, expandable to 3 drives
  • 900 TB compressed capacity with 20 included 45 TB cartridges
  • Hardware encryption protects data at rest
  • Scales to 28.8 PB with up to 15 expansion modules

Specifications

BrandHPE
ModelP77037-B25
TypeData Cartridges
ColorBlack
SpecificationsTransfer rate: 300 MB/s
Number of cartridge slots: 40 slots for the base module
Maximum drives per enclosure: 1 half-height (HH) LTO-9 drive included, expandable up to 3 HH drives
Host interface: 12 GB/s SAS (LTO-9)
Encryption capability: AES 256-bit
Form factor: 3U per module to a maximum of 48U
Dimensions: 13.3 x 48.2 x 87.3 cm (HxWxD) (5.24 x 18.98 x 34.27 in (HxWxD))
Shipping weight13.61 kg
Package size762 × 635 × 254 mm

Questions about this item

How much compressed data can the 40-slot library hold with the included LTO-9 cartridges?

The 20 included LTO-9 cartridges each provide 45 TB native capacity, yielding 900 TB of compressed storage across the 40-slot base module.

What host interface does the LTO-9 drive use and what is its maximum transfer rate?

The drive connects via 12 GB/s SAS and delivers a native transfer rate of 300 MB/s.

How many rack units does the base module occupy and how far can it expand?

The base module is a 3U rack-mountable unit and supports up to 15 expansion modules for a total capacity of 28.8 PB.

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