Pay in installments of $266.40 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 27 - Sep 1
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
HPE InfiniBand HDR/Ethernet 200Gb 1-port QSFP56 MCX653105A-HDAT PCIe 4 x16 AdapterExperience nextlevel HPC interconnect with the HPE InfiniBand HDR Ethernet 200Gb 1 port QSFP56 MCX653105A HDAT PCIe 4 x16 Adapter. Designed for demanding workloads, this singleslot PCIe 4. 0 x16 adapter delivers up to 200 Gbps of HDR InfiniBand bandwidth with submicrosecond latency, enabling tight synchronization, rapid data movement, and neartheoretical compute efficiency across large clusters. Built for the modern data center, it blurs the line
Experience next‑level HPC interconnect with the HPE InfiniBand HDR/Ethernet 200Gb 1-port QSFP56 MCX653105A-HDAT PCIe 4 x16 Adapter. Designed for demanding workloads, this single‑slot PCIe 4.0 x16 adapter delivers up to 200 Gbps of HDR InfiniBand bandwidth with sub‑microsecond latency, enabling tight synchronization, rapid data movement, and near‑theoretical compute efficiency across large clusters. Built for the modern data center, it blurs the line between InfiniBand and Ethernet capabilities, offering a scalable, reliable solution that pairs seamlessly with HDR switches, cables, and the broader HPE ecosystem. Whether you’re running expansive scientific simulations, AI and machine learning pipelines, or data‑intensive analytics, this adapter is engineered to minimize CPU overhead while maximizing throughput and determinism across your HPC fabric.
- Ultra‑low latency, ultra‑high bandwidth: Harness up to 200 Gbps of InfiniBand HDR bandwidth with sub‑microsecond latency, enabling rapid MPI communication, fast data shuttling between compute nodes, and accelerated parallel workloads. This translates into faster job completion, more efficient scaling, and reduced time‑to‑solution for complex simulations and modeling tasks.
- One-port QSFP56 form factor for dense deployments: A compact, single‑port QSFP56 interface simplifies cabling and maximizes node density in dense HPC racks. With a robust 200G connection, you can connect to HDR switches or direct‑attach HDR networks, keeping your topology flexible while preserving precious rack space.
- PCIe 4.0 x16 host interface: The adapter leverages PCIe 4.0 x16 to deliver ample bandwidth between the host server and the network fabric, reducing bottlenecks in data‑heavy workloads. This PCIe lane allocation ensures high data throughput for demanding applications such as large‑scale simulations, real‑time analytics, and AI training pipelines.
- Optimized for HPC and AI workloads: InfiniBand HDR networks are designed for compute‑to‑compute communication with RDMA offloads, dramatically lowering CPU overhead and memory copy costs. The result is near‑zero‑latency data movement across thousands of nodes, enabling scalable, deterministic performance for tightly coupled parallel tasks and AI workloads that demand rapid parameter synchronization.
- Enterprise reliability and ecosystem compatibility: Built to integrate with HP/HPE server platforms and HDR network ecosystems, this adapter benefits from rigorous validation, driver support, and interoperability with HDR cables and HDR switches. It’s engineered for continuous operation in data centers, with proven resilience, manageability, and broad OS compatibility to support demanding production environments.
Technical Details of HPE InfiniBand HDR/Ethernet 200Gb 1-port QSFP56 MCX653105A-HDAT PCIe 4 x16 Adapter
- Part Number: MCX653105A-HDAT
- Port Configuration: 1 x QSFP56 port
- Data Rate: InfiniBand HDR up to 200 Gbps (HDR100 equivalent performance potential)
- Interface: PCIe 4.0 x16 host interface for maximum data throughput
- Latency: Sub‑microsecond live latency characteristics typical of InfiniBand HDR fabrics
- Form Factor: PCIe Add‑in Card (AIC) suitable for dense server blades and rack servers
- Protocol Support: HDR InfiniBand; Ethernet capabilities are available per SKU configuration and network setup
- Environment: Enterprise‑grade interconnect adapter intended for HPC clusters, data centers, and high‑performance workloads
- Cabling and Compatibility: Designed to work with HDR switches and high‑quality QSFP56 cables for optimized interconnect topology
How to install HPE InfiniBand HDR/Ethernet 200Gb 1-port QSFP56 MCX653105A-HDAT PCIe 4 x16 Adapter
- Power down the server and unplug all power sources. Ground yourself to prevent static discharge before handling components.
- Open the server chassis and locate a free PCIe 4.0 x16 slot. Confirm that the slot is compatible with PCIe 4.0 or higher and that there is adequate clearance for the adapter’s height and connectors.
- Remove the slot cover brace or mounting bracket as required by the chassis. Align the MCX653105A-HDAT card with the PCIe slot and firmly seat it into place until the retention mechanism clicks.
- Secure the card with a screw to the chassis to ensure stable seating. Reconnect any fans or cooling arrangements if they were displaced during installation.
- Connect the QSFP56 network cable to the adapter’s port and route the cable to the HDR switch or directly to the HDR fabric as dictated by your topology. Ensure the cabling is properly clipped and not under tension.
- Power on the server and install or update the necessary driver and firmware for the adapter. Verify the operating system recognizes the device and confirm link status via the server management tools or NIC software utilities.
- Configure the InfiniBand HDR network settings, including MTU, PCIe throughput policies, and RDMA parameters. Validate connectivity with a representative MPI or RDMA workload test to ensure deterministic performance.
- Document the installation, including serial numbers, firmware revision, and network topology details, to support ongoing maintenance and future upgrades.
Frequently asked questions
- Q: What workloads benefit most from the HPE InfiniBand HDR 200Gb adapter? A: Large‑scale HPC simulations, weather modeling, CFD, molecular dynamics, and AI/ML training pipelines that rely on fast, low‑latency interconnects and efficient data movement across thousands of compute nodes.
- Q: How does InfiniBand HDR differ from Ethernet in this adapter? A: InfiniBand HDR provides extremely low latency and high bandwidth designed for tightly coupled HPC communication. Ethernet capabilities on HDR networks run alongside, offering flexible connectivity options within the same fabric depending on configuration and switches used.
- Q: What is the significance of PCIe 4.0 x16 for this adapter? A: PCIe 4.0 x16 delivers ample host bandwidth to support the 200 Gbps interconnect, reducing bottlenecks between the CPU, memory, and the InfiniBand fabric, which is critical for scaling large workloads.
- Q: Is RDMA supported with this adapter? A: Yes. RDMA (Remote Direct Memory Access) capabilities are a core benefit of InfiniBand HDR, enabling direct memory access across nodes with minimal CPU overhead and faster data transfer.
- Q: What kind of switches and cables are compatible? A: HDR switches and high‑quality QSFP56 cables designed for InfiniBand HDR networks are recommended. Ensure firmware and driver versions are aligned across the fabric for best interoperability.
- Q: Which operating systems are supported? A: Enterprise HPC adapters from HPE typically support major server operating systems with corresponding drivers. Always verify the latest driver package and OS compatibility from the vendor’s support portal before deployment.
- Q: Can this adapter be used in mixed interconnect environments? A: It can participate in HDR fabrics and be integrated with Ethernet‑capable network segments, depending on the fabric’s topology and configuration. Coordination with your network administrator is recommended to maximize performance and reliability.
- Q: What management and monitoring tools work with this adapter? A: Management tools provided by HPE and the InfiniBand ecosystem—along with standard OS networking utilities—can monitor link status, throughput, latency, and error counts. Firmware and driver updates are typically delivered through vendor portals or enterprise management suites.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 21 reviews
Sort
Product Reviews
★★★★★ 5
The "Lazy Professional" Look: Is Hands-Free Luxury Actually Real?
Size: 9.5, Color: Black Napa Leather
Living down here in Florida, my footwear needs are pretty specific. It’s hot, it’s humid, and I spent half my life rushing from the car into work or a meeting. I’ve reached that age where I value efficiency just as much as style—maybe more. I’ve been eyeing the Marc Joseph New York Hands-Free Slip-on Penny Loafers for a while, and after putting them through the wringer, here is the honest truth from someone who just wants to look sharp without the hassle.
The "Just Step-In" Reality
Look, the big selling point here is the "Hands-Free" tech. We’ve all seen the commercials for those athletic slip-ins, but finding that in a legitimate leather penny loafer is a different game. Does it work? Yes, surprisingly well. The heel counter is firm enough that it doesn’t collapse when you slide your foot in, but it doesn’t feel like a piece of plastic digging into your Achilles once you’re in. For those of us who are tired of bending over or hunting for a shoehorn every morning, this is a genuine quality-of-life upgrade.
The Florida Factor: Comfort and Style
The leather is actual calfskin (on most models), which is a must for the Florida heat. Synthetic shoes turn into a sauna within ten minutes, but these breathe reasonably well. The aesthetic is classic—it’s a "professor" shoe through and through. You can wear them with chinos and a blazer for work or throw them on with some nice jeans for a weekend lunch.
Inside, they’ve got a gel heel insert and a padded footbed. It’s not quite "walking on a cloud"—let’s not over-hype it—but it’s a massive step up from the hard, flat soles of traditional dress loafers. I’ve spent four hours on my feet lecturing, and my arches didn’t hate me by the end of the day.
The Sizing Gamble
Here’s where you need to be careful. The consensus from other guys (and my own experience) is that the sizing is a bit of a coin toss. They tend to run a little large and sometimes wide. If you have narrow feet, you might find the sides "gaping" or flaring out when you walk, which kills the sleek look. I’d recommend ordering a half-size down if you’re usually between sizes.
The Breakdown
The Pros:
True Hands-Free: You can actually put these on while holding a coffee and a briefcase. No hands needed.
Legit Materials: The calf leather feels premium and smells like the real deal.
Versatility: Perfectly bridges the gap between a "car shoe" and a formal loafer.
Comfort: The gel insert makes a noticeable difference for long-duration wear.
The Cons:
Sizing Inconsistency: They can run wide, leading to some "heel slip" if you don't get the perfect fit.
Break-in Period: The heel is stiff by design (to allow for the slip-on feature), so expect a day or two of minor stiffness.
Price Point: They aren't cheap, though often on sale.
Value for Money
Are they worth it? If you’re comparing them to high-end Italian brands that cost $500, these are an absolute steal. They look 90% as good for a fraction of the price. However, if you're used to $60 mall shoes, the jump to $150+ might feel steep until you realize you’re paying for the convenience of never having to touch your shoes to put them on. For a daily driver in a professional setting, the value is definitely there.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
★★★★★ 5
Step In Look Good
Size: 11.5, Color: Cognac Napa Leather
I am wearing these shoes as I write this review, and they look and feel great. I have a bit of a disability with drop foot on the right leg and bilateral neuropathy and have been wearing step in shoes for about 10 years. But the first company that introduced leather dress and casual shoes stopped making them and now only makes sport and casual shoes. So I have been searching for some that meet my need for shoes like this and this company has given me three pairs, so far. Easy to get into, comfortable to wear, and good looking. And they take polish very well, too. (Remember how to do that?). We may buy another pair or two in different styles as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 4
Runs tight. Skinny and smaller than other brands.
Size: 8.5, Color: Brown
Comfy and lots of support. Cushiony. Beware: the brown I ordered runs small. Tighter than other brands.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
★★★★★ 5
Nice
Size: 9, Color: Black
Very comfortable. Worth the money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
★★★★★ 1
Leather peels right off
Size: 8, Color: Black
Very poor quality - shoes are ruined after a couple months
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026