Product Information

• Product Name: Transcend 1TB USB 3.1 External Hard Drive
• Model Series: StoreJet 25M3 or StoreJet 25C3 (exact model varies)
• Brand: Transcend Information, Inc.
• Series: StoreJet Portable Series
• Category: External Portable Hard Drive
• Release Period: 2017-2022 (various production batches)
• Form Factor: Portable external enclosure
• Dimensions: 120mm × 80mm × 12mm (L × W × H, approximate)
• Weight: 180-220 grams
• Color: Iron Grey (matte or brushed aluminum finish)
• Material: Aluminum casing with shock-absorbing design

Capacity & Interface

• Total Capacity: 1 Terabyte (1,000,000,000,000 bytes)
• Usable Capacity: Approximately 931 GB (after binary conversion and formatting)
• File System: Pre-formatted as exFAT (for Windows/Mac compatibility)
• Interface: USB 3.1 Gen 1 (5 Gbps, compatible with USB 3.0 ports)
• Connector Type: USB Type-A male (standard USB) or micro-B USB 3.0
• Cable Included: USB 3.1 cable (typically 45-50cm length)
• Backward Compatibility: USB 2.0 (480 Mbps), USB 1.1 (12 Mbps)

Internal Drive Specifications

• Drive Type: 2.5-inch SATA Hard Disk Drive
• Rotation Speed: 5400 RPM (standard for portable external drives)
• Cache Size: 128MB (typical buffer size)
• Platters: 1 or 2 platters (depending on drive technology)
• Recording Technology: Likely PMR (Perpendicular Magnetic Recording)
• Internal Interface: SATA III 6Gb/s (via USB-SATA bridge chip)

Performance Specifications

• Sequential Read Speed: 100-120 MB/s
• Sequential Write Speed: 90-110 MB/s
• Access Time: 12-18 ms
• USB 2.0 Speed: 30-40 MB/s maximum

Compatibility

• Operating Systems: Windows 7+, macOS 10.6+, Linux 2.6+
• Gaming Consoles: PS4, PS5 (for PS4 games), Xbox One, Xbox Series X|S

Package Contents

• Transcend 1TB External Hard Drive (Iron Grey)
• USB 3.1 cable
• Quick start guide

Use Case Recommendations

• Ideal For: Media storage, backups, file transfers, game console storage
• Capacity Note: 1TB sufficient for ~250,000 photos, 250 movies, or 200,000 MP3 songs