SKU: 3929006056

Chelsio 4-port 1/10GbE Half Size UWire Adapter with PCI-E x8 Gen 3, SFP+ connector

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Description

Chelsio 4-port 1/10GbE Half Size UWire Adapter with PCI-E x8 Gen 3, SFP+ connectorThe Chelsio T540 CR is a high density, quad port 10 Gigabit Ethernet Unified Wire adapter designed to power modern data centers with superior performance and versatility. Built as a half height PCI Express 3. 0 card, this adapter delivers four fully capable 10G Ethernet ports over SFP+ connectors, enabling flexible fiber connectivity, scalable network growth, and consolidated workloads for cloud computing, HPC virtualization, and storage intensive

The Chelsio T540-CR is a high-density, quad-port 10 Gigabit Ethernet Unified Wire adapter designed to power modern data centers with superior performance and versatility. Built as a half-height PCI Express 3.0 card, this adapter delivers four fully capable 10G Ethernet ports over SFP+ connectors, enabling flexible fiber connectivity, scalable network growth, and consolidated workloads for cloud computing, HPC virtualization, and storage-intensive applications. With its PCIe 3.0 x8 interface, the T540-CR can harness the full throughput potential of all four ports, making it an ideal choice for dense server deployments where performance and efficiency matter most.

  • Quad-port 10GbE performance: Four independent 10 Gigabit Ethernet channels through SFP+ connectors, enabling high aggregate bandwidth for demanding workloads and multi-tenant environments.
  • Half-size, low-profile form factor: Designed for dense data center chassis and standard servers alike, offering a compact solution without compromising port density.
  • PCIe 3.0 x8 Gen 3 host interface: Robust bandwidth and high I/O efficiency ensure that all four ports are ready to handle concurrent traffic with low latency and minimal CPU overhead.
  • Unified Wire architecture: Seamlessly converges network and storage traffic to simplify cabling, improve utilization, and streamline management across diverse data center workloads.
  • SFP+ connectivity: Flexible fiber optics support through standard SFP+ modules and direct-attach cables, enabling scalable reach and modular deployment in a variety of environments.

Technical Details of Chelsio 4-Port 1/10GbE UWire Adapter

  • Product: Chelsio T540-CR – 4-Port 10GbE Unified Wire Adapter
  • Ports: 4 x 10 Gigabit Ethernet channels via SFP+ connectors
  • Interface: PCI Express 3.0 host bus interface
  • Form factor: Half-height (low-profile) PCIe card for space-constrained servers
  • Slot compatibility: Supports PCIe x8 Gen 3 slots to maximize throughputs across all ports
  • Connectivity options: SFP+ connectors for fiber NIC modules or DAC cables
  • Architecture: Unified Wire for integrated networking and storage offloads
  • Optimal use cases: Cloud computing, high-performance computing virtualization, storage networking, and data center consolidation
  • Compatibility considerations: Works with standard 10GBASE-SFP+ modules and compatible transceivers
  • Performance profile: Designed to deliver consistent low-latency 10G connectivity across all four ports with efficient hardware offloads

How to install Chelsio 4-Port 1/10GbE UWire Adapter

  • Power down the server and unplug all power sources before handling internal components.
  • Open the server chassis and locate an available PCIe slot, preferably PCIe x8, to accommodate the Chelsio T540-CR.
  • Install the half-height adapter into the PCIe x8 Gen 3 slot, ensuring the card sits firmly and the retention latch engages securely.
  • Secure the card bracket to the chassis using the appropriate screw to prevent movement and ensure proper signaling.
  • Attach SFP+ transceivers or direct-attach copper cables to the four SFP+ ports, selecting modules or DACs compatible with your network topology and distance requirements.
  • Close the chassis, reattach power, and boot the server. Install or update the necessary drivers and management tools for Chelsio NICs as recommended by the operating system and Chelsio documentation.
  • Configure each port in your operating system or virtualization environment to meet your networking policy, security, and performance goals. Validate link status and throughput with your preferred network testing tools.

Frequently asked questions

  • What is the Chelsio T540-CR? The T540-CR is a quad-port 10GbE Unified Wire adapter designed for dense data center environments, offering four 10G Ethernet ports over SFP+ with a PCIe 3.0 x8 host interface in a half-height form factor.
  • How many ports does it have and what speeds are supported? It provides four 10 Gigabit Ethernet ports, supporting up to 10 Gbps per port for a total potential throughput that scales with traffic patterns and workloads.
  • What kind of connector does it use? The card uses SFP+ connectors, enabling flexible fiber connectivity or direct-attach copper options depending on your network design and distance requirements.
  • What is the form factor and slot type? It is a half-height, low-profile PCIe card intended for PCIe x8 Gen 3 slots, suitable for dense server deployments and standard 1U/2U servers that benefit from high port density.
  • What workloads is it best suited for? The T540-CR is optimized for cloud computing, HPC virtualization, storage networking, and other data center workloads where high-throughput, low-latency networking and unified wire capabilities can reduce CPU load and simplify cabling.
Shipping Notes
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  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 3929006056

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J Whitehead
Dallas, US
★★★★★ 5
Good product, quite sticky I must say.
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
Worked for my van insulation
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Reviewed in the United States on June 1, 2026
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David Spencer
Omaha, US
★★★★★ 5
Good stuff
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
Good stuff, easy to use, self adhesive backing contours around curves easily and works great.
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Reviewed in the United States on April 29, 2026
S
Verified Purchase
stookie778
Belleville, US
★★★★★ 5
Works amazingly, but only if you install it correctly.
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
If you purchasing Siless Liner 157 mil (4 mm) Sound Deadening mat, to block unwanted sounds in your car, this is what you need to buy. But wait! It's not the only thing you need to buy if you want to "actually" deaden sound. By itself, it will definitely block a noticeable amount of sound, and, most likely, that's all you realistically need. But... But... If you want the Siless Liner Sound Deadening Mat to really help you take it up a few notches, to get the best sound almost bordering on soundproofing, listen up. You will have to install traditional butyl rubber first. Doesn't have to be the Siless brand, but I'm sure they would love to sell both to you, I used both Killmat (80mil) and Noico (50mil). I have a Honda S2000. It's a two-seater convertible sports car if you don't know what this car is, and it's loud when I'm driving above 60mph. I also happen to have a sound system installed as well. Other than that, the car is stock. I first installed the butyl rubber on the car's interior sheet metal. I went all out and covered everything I could. I didn't need to but I wanted to. I was extremely impressed with the results. But I wanted to go further. Not because I needed to but because just wanted to see what it would be like. So I bought Siless Liner 157 mil (4 mm) 36sqft Sound Deadening mat to go on top of the butyl rubber mats. I put this over every area I installed the butyl rubber. I had to be careful of clearance issues since I added a significant amount of underlayment, and you should too. If you put butyl rubber sound-deadening materials in 50% of the total interior area, you'll hear a noticeable improvement. If you put butyl in about 80% of the total area, you'll be even more amazed at the improvement, compared to before. I originally did all the above myself, so that's my experience and so your mileage may vary. I then installed the Siless Liner Sound Deadening mat over every place I could even going further than I could with the butyl rubber. I used the Siles Liner in areas where butyl rubber would not have been effective, such as the roll bar hoop area and large empty cavities or holes. I covered everything I could, firewall, doors, floor pan, transmission tunnel, trunk, trunk lid, fuel tank area, rear quarter panels, and rear-wheel tunnels, in Siless Liner Sound Deadening Mat. WOW!! The Siless Liner Sound Deadening Mat was the icing on the cake! Let's not forget, this car is a convertible sports car so it will never be a quiet ride, ever. But I can now actually have a conversation with a passenger at a normal-ish volume! This also means I can now have a normal hands-free phone call without having to plug one ear to block out the noise! My sound system sounds so much better! Just by going through the install process, I looked for any vibration, rattle, squeak, and noise-prone areas to either eliminate or reduce unwanted noise production. If you forget this step, the inside and outside of your car will rattle and buzz. I skipped this step the first time around. But did it right before I installed more butyl rubber and the improvement was impressive, especially inside the car. Outside the car, I didn't notice a difference until I put the last layer of Siless Liner Sound Deadening Mat. The sound deadening mat works both ways from what I can tell. If I turned up my music, as loud as I occasionally do, parked in the attached garage to the house, with the garage door closed, I would be barely able to tell the car was playing music in the garage. It sounds like it is another car, just a little bit down the street, with a very loud base. If you stand 20 feet away outside the car, the sound system is noticeable, but not obnoxious by a long shot. Get a 3 piece wood/metal roller set as well, which makes quick work of large areas.
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Reviewed in the United States on December 23, 2021
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Verified Purchase
Ligia
Lexington, US
★★★★★ 5
Better than Kilmat
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
Great adhesion, and you can immediately see the sound difference when you rap the area and compared it to another area without it. Also, very easy to cut and apply. Once on, you may not be able to peel it and reposition it, so be sure where you want it.
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Reviewed in the United States on March 2, 2026
J
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J M.
Pawtucket, US
★★★★★ 3
Not much noise reduction…
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
Easy to install but did not provide much sound dampening…
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Reviewed in the United States on April 28, 2026

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