iStarUSA BPU-340HD Hot-Swap Backplane | 3×5.25 to 4×3.5 | 12Gb/s
Available in stock (50)
- 3×5.25" to 4×3.5" Drive Bay Conversion — Mounts four 3.5" SAS/SATA drives into three standard 5.25" bays for compact, high-density storage expansion
- 12Gb/s Transfer Rate — SAS III / SATA III support for maximum throughput with modern high-speed drives
- Hot-Swap Drive Support — Remove and replace drives without powering down the system for continuous uptime
- RAID Ready — Supports RAID 0/1/1+0/5 configurations with an external RAID controller for data redundancy and performance
- Supports 2.5" & 3.5" SAS I/II/III and SATA I/II/III HDD/SSD — Compatible with a wide range of current and legacy drives up to 14TB
- Aluminum Body with Conductive Dissipation Grooves — Efficient passive heat dissipation optimized for high-performance SAS/SATA drives
- 80mm Cooling Fan with Fan Speed Control Switch — Active cooling with adjustable fan speed for noise and temperature balance
- LED Indicators — Power, fan status, and high temperature alerts for at-a-glance system monitoring
- Available in Blue, Silver, Red & BPL — Color options to match server or workstation aesthetics
The iStarUSA BPU-340HD is a high-density hot-swap storage backplane that converts three standard 5.25" drive bays into a four-drive 3.5" SAS/SATA storage array — maximizing drive capacity in existing server and workstation chassis without requiring additional drive bay space. Supporting transfer rates up to 12Gb/s via SAS III and SATA III, it delivers full-speed throughput for both HDDs and SSDs up to 14TB per drive. Hot-swap capability allows individual drives to be replaced under load without system downtime, making it suitable for always-on storage environments.
The aluminum construction with conductive dissipation grooves provides passive heat management optimized for high-performance drive operation, supplemented by an 80mm active cooling fan with a front-panel speed control switch. RAID 0/1/1+0/5 configurations are supported with a compatible external RAID controller, enabling both performance and redundancy setups. LED indicators for power, fan, and temperature provide real-time status at a glance. Available in Blue, Silver, Red, and BPL colorways to complement any rack or tower chassis.
Ideal For
- Server & Workstation Storage Expansion — Add four hot-swap drive bays to any chassis with three available 5.25" slots
- NAS & RAID Arrays — Supports RAID 0/1/1+0/5 for redundant or high-performance storage configurations
- Video Editing & Digital Audio Production — Fast 12Gb/s throughput for SD/HD video and high-resolution audio workloads
- Security & Surveillance Systems — Hot-swap drive replacement for continuous recording without system shutdown
- SOHO & SMB Data Backup — Disk-to-disk backup and data protection in a compact footprint
Variant Options
- Blue — MPN: BPU-340HD-BLUE
- Silver — MPN: BPU-340HD-SILVER
- Red — MPN: BPU-340HD-RED
- BPL (Black Panel) — MPN: BPU-340HD-BPL
Specifications
- Bay Conversion — 3× 5.25" external to 4× 3.5" internal
- Drive Support — 2.5" & 3.5" SAS I/II/III, SATA I/II/III HDD/SSD
- Max Drive Capacity — Up to 14TB per drive
- Transfer Rate — Up to 12Gb/s
- RAID Support — RAID 0/1/1+0/5 (requires external RAID controller)
- Hot-Swap — Yes
- Cooling — 80mm fan with speed control switch
- Body — Aluminum with conductive dissipation grooves
- LED Indicators — Power, fan, high temperature
- Colors — Blue, Silver, Red, BPL
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About Brand
About Brand
Shipping & Rerturns
Shipping & Rerturns
• Shipping: Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days depending on your location.
• Returns: You may return or exchange products within 30 days of receiving your order. Items must be in original condition with proof of purchase.
If your item is defective or damaged due to manufacturing issues, we’ll gladly replace it at no additional cost.
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How long does it take to process an order?
How long does it take to process an order?
Orders are typically processed within 1–2 business days. You will receive a confirmation email with tracking details once your order has been shipped. Please note that processing times may be slightly longer during high-demand periods or sales events.
Do you ship internationally?
Do you ship internationally?
Currently, we only ship within the U.S. For international inquiries, please contact our support team.
What is your return policy?
What is your return policy?
We accept returns within 30 days of delivery. To be eligible, items must be unused, in their original packaging, and accompanied by proof of purchase. If the item is faulty or damaged, please contact us for further instructions. For returns due to reasons other than product defects or our error, customers are responsible for return shipping costs.

