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Description
Lenovo ThinkSystem SR645 Rear 2x2.5" NVMe Backplane Option KitThe Lenovo ThinkSystem SR645 Rear 2x2. 5" NVMe Backplane Option Kit is a purpose built expansion module that unlocks high speed NVMe storage right behind the servers rear chassis. This backplane is engineered for enterprise workloads where speed and reliability matter mostthink databases, real time analytics, virtualization, and latency sensitive applications. By adding two 2. 5 inch NVMe bays at the rear, this kit helps you maximize I O throughput,
The Lenovo ThinkSystem SR645 Rear 2x2.5" NVMe Backplane Option Kit is a purpose-built expansion module that unlocks high-speed NVMe storage right behind the server’s rear chassis. This backplane is engineered for enterprise workloads where speed and reliability matter most—think databases, real-time analytics, virtualization, and latency-sensitive applications. By adding two 2.5-inch NVMe bays at the rear, this kit helps you maximize I/O throughput, reduce storage bottlenecks, and maintain clean airflow within densely packed data centers. Built to integrate seamlessly with the ThinkSystem SR645 platform, it delivers the performance quality and serviceability Lenovo customers expect from an enterprise-grade storage upgrade.
- Two 2.5-inch NVMe drive bays provide direct, high-performance storage expansion using the NVMe protocol. This enables ultra-fast read and write operations essential for data-intensive workloads and rapid data access.
- Rear-mounted backplane design optimizes airflow and simplifies cable management in compact or crowded data-center racks, helping maintain thermals while preserving system accessibility.
- Hot-swappable drives allow you to replace or upgrade NVMe drives without powering down the server, minimizing downtime and keeping critical workloads online during maintenance.
- Seamless ThinkSystem compatibility—designed to work with the Lenovo ThinkSystem SR645 servers, ensuring consistent drive mapping, reliable boot behavior, and smooth integration with Lenovo management tools.
- Enterprise-grade reliability and serviceability—built to endure the rigors of data-center environments with robust connectors and secure mounting, backed by Lenovo’s support ecosystem for ongoing firmware updates and hardware assistance.
Technical Details of Lenovo ThinkSystem SR645 Rear 2x2.5" NVMe Backplane Option Kit
- Drive bays: 2 x 2.5" NVMe rear backplane for enterprise NVMe SSDs, enabling fast, responsive storage expansion within the SR645 platform.
- Backplane design: Rear-mounted expansion backplane specifically designed for Lenovo ThinkSystem SR645 chassis, supporting efficient use of remaining internal space and optimized airflow.
- Interface and data path: PCIe-based NVMe data path that leverages the server’s PCIe lanes for high-throughput, low-latency storage access aligned with modern NVMe drives.
- Compatibility: Engineered for compatibility with Lenovo ThinkSystem SR645 servers; installation follows Lenovo chassis guidelines to ensure proper drive mapping and system recognition.
- Maintenance model: Hot-swappable drive capability enables non-disruptive maintenance to drive bays, reducing downtime for routine upgrades or repairs.
- Physical footprint: Rear backplane module sized to fit SR645 chassis rear drive area, designed to integrate with existing drive cages and mounting hardware for a clean, serviceable installation.
how to install Lenovo ThinkSystem SR645 Rear 2x2.5" NVMe Backplane Option Kit
- Power down the server, unplug from all power sources, and disconnect any connected peripherals to ensure a safe installation environment.
- Remove the server enclosure or access panels to reach the rear drive area, following Lenovo’s service guide for your SR645 generation.
- If an existing backplane or drive cage is present, carefully detach it according to the chassis documentation, keeping track of mounting screws and brackets.
- Align the Rear 2x2.5" NVMe Backplane with the chassis rear mounting points and seating areas. Secure the backplane using the appropriate screws or latch mechanisms provided with the kit or the chassis.
- Connect the backplane to the system’s NVMe/PCIe connectors as specified in the SR645 maintenance guide. Ensure all connectors are fully seated to establish a reliable data path to the motherboard/CPU PCIe controller.
- Install two 2.5-inch NVMe drives into the backplane’s drive bays, using the standard drive trays or hot-swap caddies approved for your SR645 configuration. Confirm each drive is firmly seated and secured.
- Reinstall any drive cages or cover panels, reassemble the chassis, reconnect power and cables, and boot the server. Enter the system BIOS or UEFI to verify the new NVMe backplane and drives are detected and correctly mapped.
- Once the OS loads, use Lenovo management tools or your standard storage admin tools to format, partition, and configure the new NVMe storage as needed for your workloads.
Frequently asked questions
- What is the Lenovo ThinkSystem SR645 Rear 2x2.5" NVMe Backplane Option Kit? A dedicated expansion module that adds two rear-mounted 2.5-inch NVMe drive bays to a Lenovo ThinkSystem SR645 server, delivering enhanced storage performance and easier maintenance for enterprise workloads.
- What drives are supported? The kit supports standard 2.5-inch NVMe SSDs that are compatible with the SR645 chassis and drive caging. Always consult Lenovo’s official compatibility guides for approved drive models and firmware requirements before purchasing.
- Is the backplane hot-swappable? Yes. The design supports hot-swappable NVMe drives, enabling drive replacement or upgrades without powering down the server, which helps maximize uptime for critical workloads.
- Is this backplane compatible with all generations of the SR645? The kit is designed to work with ThinkSystem SR645 servers, but always verify your server’s exact generation, firmware levels, and chassis configuration against Lenovo’s product documentation to ensure full compatibility.
- Do I need any special tools or cables? Installation typically uses standard server mounting hardware and the backplane’s integrated connectors. Some setups may require specific cables or adapters provided by Lenovo for your chassis; refer to the installation guide for precise requirements.
- How does this backplane affect system performance? By providing direct, high-speed NVMe connections at the rear of the chassis, the backplane can reduce controller contention and latency for NVMe workloads, improving throughput for I/O-intensive applications while maintaining efficient airflow.
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4.3 ★★★★★
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Product Reviews
★★★★★ 5
Great Room divider
Color: Beige, Size: 34"- 3 Panel
Works well in separating my kids play area from my computer/office room. Easy to put together, height is perfect somewhat sturdy, looks great, light weight, not good if you are using it as a door, but if it is to stay in place than it is stable enough.
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Reviewed in the United States on September 3, 2025
★★★★★ 5
Exactly what I needed
Color: Black, Size: 34"- 3 Panel, Color: Black, Size: 34"- 3 Panel
It was easy to put together even without a power drill. Completely opaque. Only a very small slit between poles. I plan to add black electrical tape, but that's because I don't want nosies peeking through to see my screen. The height is beautiful. I was afraid it wouldn't be as tall as I needed. But it is perfect.
I share a small office with a good buddy of mine. People passing by our door is distracting and invites them to speak to me. I needed something that would stop the former and prevent the latter, especially when I'm deep in concentration mode. The two panels are enough to block outsiders and the third panel I will employ when I can't even be disturbed by my officemate. It's the fastest and easiest signal not to disrupt me at all. 10/10
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Reviewed in the United States on August 3, 2025
★★★★★ 3
Packaging contents
Color: Grey, Size: 34"- 3 Panel
Item is as described however this one appeared to be open and some parts possibly used. Example pole packaging mislabeled one had the letter K as a part there is no letter K item in the instructions. Another pole part had a taped on letter A which is completely different from the others thus indicating that it was opened or substituted. Finally after the partition was completely put together one of the bottom screw connection anchors came out making the partition unable to stand. I'm going to have to rig something up in order to get the anchor connected to the bottom panel. In closure the partion could be very acceptable and do the job if it was new and parts labeled correctly. I have pictures of all parts and packaging errors. Would buy again if new. I'm going to pursue some kind of compensation.
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Great product
Color: Grey, Size: 34"- 6 Panel
This room divider is great. It was easy to put together. I was worried about it standing up right and not falling over. It stays up perfectly and is very easy to move and adjust to the shape I want it. Also, from one of the videos I watched it looked like the fabric was puckered in the panels. That is not the case at all. The fabric fits tightly in each panel for a nice smooth look. I would definitely recommend this and would buy again if needed.
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Reviewed in the United States on March 3, 2025
★★★★★ 1
Awful.
Color: Black, Size: 22"- 4 Panel
Easiest one star review ever. I'm writing this with bloody fingers from assembling this. Multiple poles were bent, none of the pole connectors worked, the hex wrench broke in my hand, the screws didn't really go into the holes provided (I had to get a friend with a press drill to widen the holes to make it work), there are sharp edges on the poles where there is a seam, and doesn't look that great once assembled. Easy do not buy, the only reason I didn't return is because it would have been tough to disassemble the half I got through in the first 5 hours of building (mostly spent fixing the product delivered)
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Reviewed in the United States on December 30, 2025