Sony

Sony SDX135C 35/91GB AIT-1 Data Tape Cartridge

5.0 (2 reviews)

Sony AIT-1 data tape cartridge delivers 35GB native storage with MIC memory chip for reliable backup and archival.

$12.95*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The Sony SDX135C AIT-1 Data Tape Cartridge is built for organizations that depend on AIT-based backup infrastructure. Offering 35GB of native storage and up to 70GB with compression, this cartridge provides a practical solution for routine backups, disaster recovery archives, and off-site data retention. The 230-meter tape uses Sony's 100 percent cobalt dual magnetic layer formulation, which is engineered to maintain signal integrity over extended storage periods and repeated read/write cycles.

A distinguishing feature of this cartridge is the integrated MIC (Memory-In-Cassette) chip. Rather than requiring the drive to scan through the entire tape to locate specific files, the MIC stores a directory of the tape's contents, dramatically reducing search and restore times. This makes the SDX135C particularly useful in environments where quick retrieval of archived data matters. The 8mm width keeps the cartridge compact, and its compatibility with standard AIT-1 drives makes it a straightforward replacement or expansion option for existing tape libraries.

Key Features

230 meters long, 8 millimeters wide

For use in AIT drives

MIC memory chip included in cartridge

35 GB capacity, 70 GB compressed

100 percent cobalt dual magnetic layer

Specifications

Brand
Sony
Model
SDX135C
Format
AIT-1
Native Capacity
35GB
Compressed Capacity
70GB
Tape Length
230 meters
Tape Width
8 millimeters
Magnetic Layer
100% Cobalt Dual Layer
Memory Chip
MIC (Memory-In-Cassette)

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Pros & Cons

👍 Pros

  • MIC memory chip enables faster file search and retrieval compared to cartridges without onboard memory
  • 70GB compressed capacity provides substantial backup storage on a single compact cartridge
  • 100 percent cobalt dual magnetic layer construction supports reliable long-term data retention
  • 8mm form factor keeps the cartridge physically small relative to its storage capacity

👎 Cons

  • Requires a compatible AIT-1 drive, which is a legacy format with limited availability of new hardware
  • 35GB native capacity is modest compared to later-generation tape formats like AIT-3 or LTO
  • Compressed capacity of 70GB depends on data type and is not guaranteed for all workloads

Frequently Asked Questions

The native capacity is 35GB, which increases to 70GB with hardware compression enabled in a compatible AIT drive.
The Memory-In-Cassette (MIC) chip stores a catalog of the tape's contents, allowing AIT drives to locate files significantly faster than scanning the entire tape sequentially.
This cartridge is designed for use in AIT-1 (Advanced Intelligent Tape) drives. It is not compatible with DLT, LTO, or other tape formats.
The tape is 230 meters long and 8 millimeters wide, using Sony's dual-layer cobalt magnetic coating for data integrity.