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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
HPE® 394791-B21 alternative Intel 82576 NIC PCIe 2.0 x4 Dual Port 1GbE RJ45HPE 394791 B21 alternative Intel 82576 NIC PCIe 2. 0 x4 Dual Port 1GbE RJ45 The PCIe* v2. 0 (2. 5GT s) Intel 82576 GbE Network adapter is a single, compact, low power component that offers two fully integrated Gigabit Ethernet Media Access Control (MAC) and physical layer (PHY) ports. The 82576 enables two port implementation in a relatively small area and can be used for server system configurations such as rack mounted or pedestal servers, where it
HPE® 394791-B21 alternative Intel 82576 NIC PCIe 2.0 x4 Dual Port 1GbE RJ45
The PCIe* v2.0 (2.5GT/s) Intel 82576 GbE Network adapter is a single, compact, low power component that offers two fully integrated Gigabit Ethernet Media Access Control (MAC) and physical layer (PHY) ports.
The 82576 enables two-port implementation in a relatively small area and can be used for server system configurations such as rack mounted or pedestal servers, where it can be used as add-on NIC or LAN on Motherboard (LOM) designs.
Another system configuration is blade servers, where it can be used as LOM. The 82576 can also be used in embedded applications such as switch add-on cards and network appliances.
System Requirements
- Windows Client: Windows 10/8.1/8/7
- Windows Server: 2008 R2/2012/2012 R2/2016/2019
- Linux: RHEL7.9/8.4/8.5, SLES12SP5, SLES15SP3, Ubuntu18.04LTS/ 20.04LTS, FreeBSD 12.2/13
Specification
- Chipset: Intel JL82576EB
- PCI-Express host interface specification v2.0 with 2.5GT/s BUS width
- PCI-Express lanes: x4
- MDI (Copper) standard IEEE 802.3 Ethernet interface for 1000BASE-T, 100BASE-TX, and 10BASE-T applications (802.3, 802.3u, and 802.3ab)
- Serializer-Deserializer (SERDES) to support 1000Base-SX/X/LX (optical fibre) for Gigabit backplane applications.
- Layer 2 functions: IEEE 802.3x Flow Control - IEEE 802.1q VLAN
- Supports Receive-side scaling (RSS)
- Supports IPv 4, IPv 6 protocols
- Supports Jumbo Frames up to 9.5K
- Supports UDP.TCP and IP Checksum offloading
- Statistics for management and RMON
- Support for virtual machines device queues
- Queues per port: 16 TX queues and 16 RX queues Full-Spectrum Security
- Next Generation VMDq Support (8VMs)
- Interrupt throttling control to limit maximum interrupt rate and improve CPU usage
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
4.8 ★★★★★
Based on 2062 reviews
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Product Reviews
★★★★★ 5
Most comfortable pillow I’ve ever slept on
Size: Queen (1 Count), Color: Crescent White(cooling)
This is the most comfortable pillow I have ever slept on. It doesn't mash down like other pillows. Cradles my neck perfectly plus it’s cool. I broke my neck a couple of years ago and this pillow feels very good and comfortable. Definitely recommend to everyone. Ive used it since May and it’s retained its shape.
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Reviewed in the United States on June 6, 2026
★★★★★ 4
Smell
Size: Queen (2 Count), Color: Original White (Cooling)
The fact that there are not more comments on the smell of these pillows has me worried about some of yall. Listen, I LOVE the weight, and the firmness, it’s perfect for that. However, these pillows are RANK. They have a very strong mildew-ish smell that lingers. I took the outer cover off and washed it and let the pillow air out for a few days, the smell is still very strong when you press your face against it, which one does because it is in fact designed for that purpose. It smells so bad. It’s nauseating. I can smell it through two pillowcases and blanket that I threw on top of them hoping an extra layer would trap the smell. I’ll bake them in the Texas sun tomorrow and hope that helps, because otherwise these are the perfect pillows for someone who wants to feel like they are hugging a torso but can’t stand the sound/feel of someone else breathing. I don’t know…4 stars, if the smell goes away I’ll come back.
Update: many many days later. Either they don’t really smell anymore or I got use to it. They’ve held their firmness and shape well. I like them.
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Reviewed in the United States on March 9, 2026
★★★★★ 5
Actually Cooling Pillow
Size: Queen (1 Count), Color: Original White (Cooling)
This is a really nice pillow, I was worried it would be too soft or too firm but it's just right and it's actually cooling, it feels cool every time I touch it. I've noticed an improvement in sleep since using it. Would recommend!
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Repurchased in King Size – Still Love These Cooling Pillows
Size: King (2 Count), Color: Original White (Cooling), Size: King (2 Count), Color: Original White (Cooling)
After using the queen-size version of these pillows for over a year, we purchased the king-size set when we upgraded to a king mattress. Both my husband and I really like them.
The cooling feature works well, and we like that each side feels different—when I run cold, I use the softer bamboo side, while my husband prefers the cooler side since he tends to sleep hot. They fit well in our king-size pillowcases and feel supportive in all sleeping positions, whether I’m on my stomach, side, or back.
I also appreciate that you can remove some of the filling to adjust the firmness. The covers are washable, which makes them easy to maintain. Overall, we’re very happy with this repurchase and the long-lasting comfort.
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Reviewed in the United States on April 15, 2026
★★★★★ 3
Not great at cooling
Size: Queen (2 Count), Color: Original White (Cooling)
Each pillow cover has 2 sides, one marked for cooling, and the other a different fabric. The cooling side is about the same effectiveness as having a silk or satin pillow cover. It's only cool when you first touch it. The cooling side doesn't seem to absorb or wick moisture, so if you are sweaty - it keeps the moisture in place. You'll definitely want a regular pillow case over the pillow cover. In fact, if you suffer from night sweats, the non-cooling side is actually more comfortable. The pillow fill is ample, and simple to squish around for more support for your neck, etc. Think bean bag. But it will retain your impression after use. I find I need to do as I did when I had down pillows - give it a few good shakes in the morning when I make the bed to get it evened out for the coming night. In all, it is a well-made and comfortable pillow to sleep on, but it does not excel in cooling.
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Reviewed in the United States on May 29, 2026
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