Spectra SL3 Library
Powerful tape library in a compact 3U footprint, built to grow with your business.
Spectra SL3 — Simple, Scalable, & Secure Tape Storage
Spectra SL3 libraries deliver big capabilities in a small package, making it the perfect fit for organizations that need reliable, long-term storage without giving up valuable rack space. Start small and scale up as your data grows, all while enjoying intuitive management, quick installation, and built-in ransomware protection. With the SL3 library, you get the proven performance, flexibility, and peace of mind — at a size and price that’s right for you.

Max Capacity:
- LTO-10 Native: 19.2 PB
- LTO-10 Compressed: 48.0 PB
Max Drives:
- Half Height: 48
- Full Height: 16
Max Slots:
- 640
Max Throughput (Full Height):
- Native – 51.8 TB/hr
- Compressed – 155.4 TB/hr
Benefits
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Easy to use Intuitive user interface for management and reporting through a color touch screen or remote web interface.
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Modular, scalable design Start small and expand to 40 slots and 3 drives per expansion module in less than 30 minutes.
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Integrates with your environment Support for all major backup software, archiving software, and operating systems with multiple network connectivity options.
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Store more, spend less Easy to scale or upgrade drive and media generations while preserving your initial investment and footprint.
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Secure data against attacks Tape offers the only true "offline" air gap for data protection, eliminating unauthorized electronic access.
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Designed for 24/7 operations Reliable with 100% duty cycle, error recovery, and reporting for maximum performance.
Intuitive Management
The Spectra SL3 library makes managing your data storage simple and stress-free. Its easy-to-use web interface lets you check system status, run reports, and manage media from anywhere — no special software needed. With secure remote access and automated alerts, you can stay informed and in control, saving time and reducing IT workload. It’s a smarter, more efficient way to keep your growing data safe and organized.
Simplified Tape Operations
Easily manage media with the option to import or export a single tape through the mail slot or up to 20 tapes at a time using one of two magazines per module. Built-in barcode scanning automatically tracks each cartridge, keeping data organized and accessible. These streamlined tape operations save time, reduce errors, and ensure your critical information is always ready when needed.
Big Capacity, Small Footprint
Occupying just 3U of rack space, the Spectra SL3 library delivers exceptional storage density with up to 40 LTO slots per module. Starting small and scaling to 640 slots and 19.2 PB of native capacity with expansion modules, it’s ideal for organizations needing enterprise-class storage in limited space. Its modular design offers a cost-effective, “pay-as-you-grow” path for meeting explosive data growth without expanding your footprint.

Specifications at a glance
Capacity & Throughput | |||||
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# Control Modules | # Expansion Modules | 1 | 0 | 1 | 1 | 1 | 2 | 1 | 3 | 1 | 15 (maximum configuration) |
Max Slot Count | Media Type | 40 | LTO | 80 | LTO | 120 | LTO | 160 | LTO | 640 | LTO |
Max Native Capacity1 | 1.2 PB | 2.4 PB | 3.6 PB | 4.8 PB | 19.2 PB |
Max Compressed Capacity2 | 3.0 PB | 6.0 PB | 9.0 PB | 12.0 PB | 48.0B |
Max Drives | 3 HH | 1 FH | 6 HH | 2 FH | 9 HH | 3 FH | 12 HH | 4 FH | 48 HH | 16 FH |
Max Native Throughput3 (TB/hr.) | 3.2 | 6.4 | 9.6 | 12.8 | 51.8 |
Max SLS Partitions | 20 | 20 | 20 | 20 | 20 |
Tape Drives Supported | LTO-10 | LTO-9 | LTO-8 | LTO-7 | LTO-6 | ||||
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Environmentals – All LTO Drives | |||||
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Mode | Dry-Bulb Temperature | Maximum Temperature Rate of Change | Relative Humidity (non-condensing) | Maximum Humidity Rate of Change | Altitude (max) |
Allowable Environment | 16°C to 32°C (60°F to 90°F) | 5°C per hour 9°F per hour | 20% to 80% 22°C dew point max | 5% per hour with no condensation | 3,048 m (10,000 ft) |
Recommended Environment | 16°C to 25°C (60°F to 77°F) | 5°C per hour 9°F per hour | 20% to 50% 22°C dew point max | 5% per hour with no condensation | 3,048 m (10,000 ft) |
Reliability | |
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Library | 5 minutes for hot-swap drives and power supplies. 10 minutes for non-hot-swap components |
Robotic | Mean Swaps Between Failures (MSBF): 2 million |
Power Requirements | 100-240v AC, 50/60 Hz 80 PLUS Gold Power Supplies |
Dimensions | ||
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Control Module | Expansion Module | |
Width | 18.7 in (475 mm) | 18.7 in (475 mm) |
Depth | 35.1 in (892 mm) | 35.1 in (892 mm) |
Height | 5.27 in (134 mm) | 5.27 in (134 mm) |
Weight | 44.1 lb (20.0 kg) | 39.7 lb (18.0 kg) |