Best Ethernet Cables for ESXi Hosts

Ethernet Cables For EsxiStruggling to keep your servers up and running?

You’re not alone.

A lot of businesses struggle with server crashes, especially during the busiest times of the day.

But don’t worry – we have the solution for you.

You’re about to find out about the best ethernet cables specifically designed for ESXi hosts.

Introduction to Ethernet Cables

Network cables are the unsung hero of network communication.

They’re the little things that make sure your data is transferred and received in its entirety, with no interference or disruption.

Ethernet cables have been around for years, and ESXi hosts have specific needs that may require a different type of cable.

Let’s explore what you need to know about the best ethernet network cables for ESXi hosts.

Years ago, I experience the problem with servers crashing during the busiest time of the day.

Guess what was causing it? After literally days of troubleshooting, the network team figured it out.

Basically, during the peak hours, our ESXi host network was maxing out the bandwidth of the cheap copper CAT6 cables we were using.

On the Cisco switches, the network team found 1000s of CRC errors on the ports.

These errors were crashing our servers because we were using iSCSI for our storage.

BTW, we were having similar problems with databases also using iSCSI storage.

Video Training – Panduit Ethernet Cable


Best Ethernet Cables for ESXi Hosts

In general, you’ll want to choose an Ethernet cable made of quality materials and designed for high-speed data transfer.

Cat6a or Cat7 cables are typically good for ESXi hosts on a 10G network.

These cables are made of thicker copper wire than standard Cat5 or Cat6 cables, which helps to reduce interference and crosstalk.

They also have a higher bandwidth capacity, which is important for data-intensive applications.

VMware ESXi Network Cable Best Practices

When choosing an Ethernet cable for your ESXi host, it’s also important to consider best practices for cable length.

The maximum length for a Cat6a cable is 100 meters (328 feet), while the maximum length for a Cat7 cable is 150 meters (492 feet).

If you need a longer cable, you can use multiple cables to create a daisy chain.

And don’t forget to be sure to use RJ45 couplers/jacks that are also rated for the high speed and bandwidth of your network.

Once you’ve chosen the right Ethernet cables and jack, your ESXi host network should be able to handle the load.

Here are the best practices you should consider:

  • The type of cable (Cat6e or Cat7)
  • The length of the cable
  • The maximum bandwidth capacity

For more information on ESXi server hardware, check out our server guide.

Best Network Cable Options:

After my painful experience, I now prefer to use Panduit cables for everything.

Panduit is a well-known manufacturer of networking cables, and their CAT6A cables are some of the best on the market.

They’re designed to provide high performance and reliability in demanding network environments, and they’re perfect for use with ESXi hosts.

If you’re looking for a reliable and high-performing ethernet cable for your ESXi host, then you should definitely consider Panduit CAT6A or CAT7 cables.

They’re built to last and can handle even the most demanding network environments.

Plus, they’re backed by Panduit’s excellent warranty and support services, so you can be sure you’re getting the best possible quality.

Panduit CAT6a Cables

#1 Best Choice
Panduit Cat.6a UTP Patch Network Cable - 20 ft Category 6a Network Cable for Network Device - First End: 1 x RJ-45 Network - Male - Second End: 1 x RJ-45 Network - Male - Patch Cable - 28 AWG - Off Wh
  • Cable Type: Category 6a
  • Cable Characteristic: Patch Cable
  • Cable Length: 20 ft
  • Connector Type on First End: RJ-45 Network - Male
  • Connector on First End Details: 1 x RJ-45 Network - Male
#2 Best Choice
Panduit CJ6X88TGWH Category-6A 8-Wire TG-Style Jack Module, White
  • Each jack is 100 percent tested to ensure NEXT and RL performance and is individually serialized for traceability
  • Contacts plated with 50 micro Inch of gold for superior performance
  • Can be re-terminated a minimum of twenty times
  • Universal termination cap is color-coded for T568A and T568B wiring schemes
  • Accepts 6 and 8-position modular plugs without damage
#3 Best Choice
Rapink Patch Cables Cat6a 10ft (10 Pack) Slim, Cat6a Ethernet Patch Cable 10G Support, Snagless Cat 6 Patch Cable for Patch Panel to Switch, Flexiable Cat 6a Ethernet Cable with Gold Plated
  • 【Extremly Thin】CAT6A patch cables is about half the diameter of a typical patch cable.Means three of them will be in the same space of a standard patch cable. It is much easier to route multiple connections in a smaller space with slim cat6 cable.
  • 【Flexible】These short ethernet cable 10ft are exceptionally thin and very flexible. High density patch cables cat 6a used for router to patch panel to save space. Meanwhile, it is much easier to route multiple connections in a smaller space. Besides, patch cable inch is perfect to be stowed way in your laptop bag.
  • 【Save Space and Time】Slim cat6a patch cable is easier to route and saves valuable space in high density environments, such as data centers and telecommunications rooms. With thin ethernet cable, you can fit more cables in the same space, saving you the time and cost of expanding or replacing cable pathways.
  • 【10G speed via Gold plated pins】All 8P8C of 30AWG pure copper cat 6a patch cable are golden plated to support better network connection up to 10G speed 550MHZ ethernet network.
  • 【Upgrade and Clean Up Rack】Good size cat 6a ethernet cable for clean wire management install. Short ethernet cable make your setup so much easier and cleaner with all same length and color. Cable patch cords is more reliable and secure than Cat5 cable network. Great for Tight Racks with very little space between the equipment.
#4 Best Choice
JAVEX 23AWG CAT6A 100% Shielded FTP [UL CMR, for PoE++, 500FT] Solid Pure Copper 750MHz, ETL Listed Ethernet Cable, 500 Feet, Blue
  • [High-speed Shielded Transmission] JAVEX premium Cat6A 23AWG CMR rated network cables meet up–to-650Mhz performance to support data transmission and comply with IEEE 802.3af (PoE) / IEEE 802.3at (PoE+) in structure cabling for horizontal and building backbone. The FTP shield design helps prevent EMI and eliminate cross-talk
  • [Sequential Foot-Marking]: the running "FT" Count on cable makes cabling system installation with excellent precision
  • [Bare Copper Conductor]: Solid bare copper (BC) delivered the signal fidelity and durable long-lasting quality compared to copper clad aluminum (CCA)
  • [Indoor Riser Rated ] : The UL Riser rated jacket is designed for in-wall and Indoor between floors, and non-plenum spaces and comply with the vertical installations test with mild flame retardant
  • [Certified Quality] : JAVEX Ethernet cables guarantee the certificated quality defined by UL listed (E516648), ANSI/TIA, and U.S. product safety standard as well as leading testing lab-ETL VERIFIED TO TIA-568.2-D, UL LP for PoE++
#5 Best Choice
Cat 6a Ethernet Cable 50 Ft,Durable Flat Internet Network LAN Cable with 1.5Ft Short Patch Cord, Slim High Speed Gigabit Computer Wire with RJ45 Connectors, Faster Than Cat6/Cat5e/Cat5 Cable - White
  • 【10Gbps 600MHz High Speed】 All the Cat 6a lan cable pass professional cable analyzers tested. Lightning fast transmission of up to 10 Gigabits per second (10 times faster than Cat-5 cables); bandwidth of up to 600MHz. No need to worry about network speed or lagging when working, gaming, and surfing the Internet.
  • 【Flexible Flat Design】 The flat and white appearance design makes this ethernet cable super flexible and allows for a cleaner and safer installation. You can easily and seamlessly make the cable run along walls, follow edges&corners, or even make it completely invisible by sliding it under a carpet. It can be reasonably wired and save space.
  • 【Weatherproof & UV Resistant】 Manufactured with upgraded weatherproof and UV-resistant PVC outer jacket, cat6a ethernet cable is waterproofed, anti-corrosion and more durable. Suitable for both outdoor and indoor use with longer service life. Please feel free to contact us if you have any questions or concerns. We would provide friendly customer service in time.
  • 【Upgraded Structure】 Cat-6a cable made of 4 Pairs 100% 30AWG pure and thick shielded twisted pair (S/FTP) of copper wires, and rj45 connectors with 50-micron gold plated contact pins effectively reduce EMI/RFI interference and optimize signal quality. The aluminum shell makes the network cable with better heat dissipation and protects the inner core from external interference.
  • 【Wide Compatibility】 RJ45 connectors offer universal connectivity to computers and network components, such as PCs, computer servers, printers, routers, switch boxes, network media players, NAS, VoIP phones, PoE devices, and more; Supports: Ethernet 10BASE-T, 100BASE-TX (Fast Ethernet), 1000BASE-T (Gigabit Ethernet), and 10GBASE-T (10-Gigabit Ethernet).

Panduit RJ45 Jacks

#1 Best Choice
#2 Best Choice
Panduit CJ688TGBU-24 UTP Jack Module (Pack of 24), Blue
  • Category 6
  • Color: Blue
  • Manufactured by Panduit
  • Package Dimensions: 4.9 L x 23.2H x11.3W x(centimeters)
#3 Best Choice
Panduit CJ688TGBU Category-6 8-Wire TG-Style Jack Module, Blue
  • Each jack is 100 percent tested to ensure NEXT and RL performance and is individually serialized for traceability
  • Contacts plated with 50 micro Inch of gold for superior performance
  • Can be re-terminated a minimum of twenty times
  • Universal termination cap is color-coded for T568A and T568B wiring schemes
  • Accepts 6 and 8-position modular plugs without damage
#4 Best Choice
#5 Best Choice

NIC Alternatives for ESXi

Intel Ethernet Converged X710-Da2 Network Adapter (X710Da2)
25 reviews
Intel Ethernet Converged X710-DA2 Network Adapter (X710DA2)
  • Dual- and quad-port 10 GbE adapters
  • PCI Express (PCIe) 3.0, x8
  • Exceptional low power adapters
  • Network Virtualization offloads including Geneve, VXLAN and NVGRE
  • Intel Ethernet Flow Director for hardware based application traffic steering
10Gtek 10Gb Dual RJ45 Port Network Card with X540 Controller, PCIe Ethernet LAN Adapter for Windows/Linux/ESX Servers, Compare to Intel X540-T2
  • Equipped with original Intel X540 controller chip which supports Intelligent Offloads and make the servers more stable.
  • Compatible with Windows Server 2003/ 2008/ 2012, Windows7/8/10*/Visa, Linux, ESX/ESXi*. Storage over Ethernet: iSCSI, FCoE, NFS. (Note that this card can be used with Windows 11, but it needs to be manually set up. If you buy it for Windows 11, please contact us for installation guide before using.)
  • Dual copper RJ45 ports let you connect to Category-6A and up to 100m((Category-6 up to 55 m) for meeting the demands of data center environments. PCI Express* 2.1. 5.0 G T/s X8 Lane is suitable for both PCI-E X8 and PCI-E X16 slots.
  • With profile bracket and additional low profile bracket that makes it easy to install the card in a small form factor/low profile computer case/server.NOT support hot swaping.
  • What You Get: 10Gtek 10GbE PCI-E X8 Network Card X540-10G-2T (compare to Intel X540-T2) x1, Low-profile Bracket x1. Backed by 10Gtek 30 Days Free-returned, 3 Year Free Warranty and Lifetime Technology Support.
10Gtek 10/100/1000Mbps Gigabit Ethernet Converged Network Adapter (NIC) with Intel 82576 Chip, Ethernet PCI Express Network Card, Dual RJ45 Copper Ports, PCI Express 2.0 X1, Compare to Intel E1G42ET
  • Equipped with original Intel 82576 controller chip which supports Intelligent Offloads and make the servers more stable. Compare to Intel E1G42ET.
  • Compatible with Windows Server 2003/ 2008/ 2012, Windows7/8/10/Visa/XP, Linux, VMware ESX. (Does not support VMware ESXi 7.0 or above.)
  • Dual copper RJ45 ports let you connect to Category-5 and up to 100m for meeting the demands of data center environments. PCI Express* 2.0. 2.5 GT/s X1 Lane.
  • You also can download it from Intel website. With profile bracket and additional low profile bracket that makes it easy to install the card in a small form factor/low profile computer case/server.NOT support hot swaping.
  • What You Get: 10Gtek 82576-2T-X1 1.25GbE PCI-E X1 Network Card (compare to Intel E1G42ET) x1, Low-profile Bracket x1. Backed by 10Gtek 30 Days Free-returned, 3 Year Free Warranty and Lifetime Technology Support.

Related reading:

Other frequently asked questions:

What is ESXi Networking?

ESXi networking is a key part of the virtualization platform.

It provides the foundation for creating and managing virtual networks within your environment.

ESXi networking allows you to create custom virtual networks, configure network settings for your VMs, and more.

What port does ESXi use?

ESXi uses the following ports:

– Port 443: This port is used for management traffic.

– Port 902: This port is used for vSphere Replication traffic.

– Port 22: This port is used for Secure Shell (SSH) traffic.

– Port 80: This port is used for HTTP traffic.

– Port 3389: This port is used for Remote Desktop Protocol (RDP) traffic.

What’s the best NIC for ESXi?

There is no one-size-fits-all answer when it comes to the best NIC for ESXi hosts.

However, some factors you may want to consider include the amount of traffic your network will be handling, the number of hosts you need to connect, and the budget you have available.

That said, here are three NICs that are often recommended for use with ESXi hosts (shown above):

1. The Intel XL710-QDA2 is an oldie but goodie but still a great ethernet network card for ESXi hosts.

It provides superior performance and reliability for your virtualized infrastructure that is still using copper cabling.

Plus, it’s backed by Intel’s industry-leading warranty and support.

2. The Intel X540-T2 is a 10GBASE-T adapter that supports two 10 Gbps SFP+ ports.

A PCIe 3.0 x8 adapter delivers high performance and low latency for large enterprise virtual infrastructure environments.

It supports virtualization technologies such as VMware vSphere and Microsoft Hyper-V.

And the X540-T2 also supports jumbo frames, VLANs, and traffic prioritization.

3. The Intel 82576 is a high-quality Ethernet network cable that is perfect for use with your hosts.

It delivers fast and reliable performance at 1.25GB, making it an ideal choice for your home lab network infrastructure.

The Intel 82576 is also backed by a strong warranty, ensuring that you can depend on it for years to come.

Conclusion:

We think the best Ethernet cables for ESXi hosts are Panduit Cat6a or Cat7 cables.

These cables handle higher bandwidth and will provide you with the connectivity that your business needs to be successful in today’s competitive market.

Like I said at the beginning, ethernet cables are one of the unsung heroes of network communication.

They’re the things that make sure your data is transferred and received in its entirety, with no interference or disruption.

While all ethernet cables will do the job, some are better suited for specific needs – like those found in an extremely busy virtual infrastructure.

Also, if you’re looking for a guide about which server to use for your VMware environment, be sure to check out our related guides above.

Or if you need help selecting the right type of network cable for your company, leave your questions or comments below and we will be happy to help.

You have been reading our guide about – the best ethernet network cables for ESXi hosts.

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