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Description
HP Compatible 300682-B21 - 4GB KIT (2X 2GB) DDR 266MHZ ECC REG DRAM Memory ModuleUpgrade your HP server or workstation with a dependable, high performance memory solution designed to replace HP part 300682 B21. This 4GB memory kit arrives as two 2GB DDR266MHz ECC Registered DIMMs, delivering reliable data integrity and improved multitasking for server workloads, virtualization, databases, and web hosting. Built for long term reliability, the kit is backed by a lifetime warranty, giving you confidence in a upgrade that keeps pace
Upgrade your HP server or workstation with a dependable, high-performance memory solution designed to replace HP part 300682-B21. This 4GB memory kit arrives as two 2GB DDR266MHz ECC Registered DIMMs, delivering reliable data integrity and improved multitasking for server workloads, virtualization, databases, and web hosting. Built for long-term reliability, the kit is backed by a lifetime warranty, giving you confidence in a upgrade that keeps pace with your growing needs. The ECC (Error-Correcting Code) and Registered buffering feature enhance stability in demanding environments, ensuring your critical applications run smoothly with fewer memory-related crashes. If you’re seeking a cost-effective way to boost system responsiveness, support larger datasets in memory, and minimize downtime, this HP-compatible memory kit is an excellent choice.
- Optimized HP compatibility: Specifically designed to integrate with HP ProLiant and other HP servers that support 266MHz DDR ECC Registered memory, ensuring reliable operation and straightforward installation.
- 4GB total capacity (2x2GB): The dual-module configuration provides ample headroom for multitasking, caching, and larger workloads, improving system responsiveness during peak usage.
- DDR266MHz ECC Registered RAM: ECC detects and corrects common memory errors in real time, while Registered (buffered) memory reduces electrical load on your memory controller, helping maintain stability under heavy I/O and virtualization tasks.
- Lifetime warranty for peace of mind: Rely on enduring performance and support with a lifetime warranty, ensuring long-term reliability for business-critical operations.
- Enhanced performance for demanding workloads: Faster access to active data improves application response times, accelerates virtualization, database operations, and web hosting tasks, and supports smoother multitasking across multiple virtual machines.
Technical Details of HP Compatible 300682-B21
- Part Number: 300682-B21
- Memory Type: DDR266MHz ECC Registered DIMM
- Kit Size: 4GB total (2 x 2GB)
- Form Factor: DIMM (Dual Inline Memory Module)
- Speed: 266MHz
- ECC: Yes (Error-Correcting Code)
- Registered: Yes (Buffered)
- Voltage: Not specified in the provided specification
- Compatibility: HP servers and workstations that support DDR266MHz ECC Registered memory (check system compatibility list for exact models)
- Warranty: Lifetime
How to install HP Compatible 300682-B21
Installing this memory kit is a straightforward upgrade process for supported HP systems. Follow these general steps to ensure a proper and stable installation:
- Power down and prepare: Turn off the server or workstation, unplug power cords, and disconnect all peripherals. Ground yourself to prevent static discharge before handling memory.
- Access the memory slots: Remove the chassis cover or access panel as required by your model to reveal the memory banks and DIMM slots.
- Identify compatible slots: Locate the available DIMM slots that support DDR266MHz ECC Registered memory and are suitable for a 4GB kit in a dual-channel configuration.
- Install the first DIMM: Align the notch on one 2GB ECC Registered DIMM with the slot, then firmly press straight down until the module clicks into place and the latches secure it.
- Install the second DIMM: Place the second 2GB DIMM in the adjacent slot following the same method, ensuring both modules sit evenly and are fully seated.
- Reassemble and verify: Reinstall the chassis cover, reconnect power, and boot the system. Enter BIOS/UEFI to verify memory detection and ensure the DIMMs are operating at 266MHz with ECC enabled.
- Test stability: Run standard memory tests or your server workload to confirm stable operation under typical load conditions.
Frequently asked questions
- Q: Is this memory compatible with HP ProLiant servers? A: Yes. The HP Compatible 300682-B21 memory kit is designed for HP servers that support DDR266MHz ECC Registered RAM and is intended to replace HP part 300682-B21. Always verify compatibility with your exact server model and firmware version before upgrading.
- Q: What does ECC Registered mean for my system? A: ECC (Error-Correcting Code) helps detect and correct single-bit memory errors, reducing the risk of data corruption. Registered (buffered) memory adds a small buffer between the memory controller and the DRAM modules, improving reliability in servers and workstations under heavy I/O and multi-user workloads.
- Q: How much performance gain should I expect? A: Expect improved system responsiveness, better multitasking, and smoother operation under workloads that leverage larger memory footprints, virtualization, databases, and web hosting. The exact gains depend on your existing memory size, workload, and system configuration.
- Q: Is there a warranty or return policy? A: The kit includes a lifetime warranty, offering long-term protection and support. Check with the seller for return policies and eligibility.
- Q: Do I need any special tools to install this memory? A: No special tools are required. Ensure you handle components by the edges, avoid touching gold contacts, and follow static safety guidelines during installation.
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
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★★★★★ 5
Good shelves for the price can be challenging to install correctly
Size: 16 Inch, Color: White, Size: 16 Inch, Color: White
Good quality shelves for the price. Happy with the purchase. They give you assorted hardware to mount each shelf. Wall anchors for masonry or brick and anchors for drywall as well as screws to affix shelf to the wall bracket. The installation was fairly easy but it can be a bit difficult to get the bracket leveled on the wall. The “level” they give you is useless, it is only the tube - not in a housing, so 1 1/2” long. You will need a better level. Basically you place the bracket where you want the shelf to go then make sure it is level and take a pencil to mark the holes. We ended up using a heavier quality wall anchor so only needed 2 anchors instead of the four they send you. Once the bracket is on, slide the shelf onto the bars coming from the bracket and use the 2 set screws to secure it in place. Check for level and if it isn’t you can remove shelf and loosen bracket screws and wiggle the bracket while still attached while retightening screws. We had to re-level one of our shelves this way. Hope this helps and that it makes sense. As for weight capacity I wouldn’t want to put more than a couple of pounds on a shelf. As it is secure, it is hollow inside and too much weight would probably either cause the shelf to sag or damage your wall
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Reviewed in the United States on February 25, 2025
★★★★★ 5
Excellent product with height recommendation
Size: 24 Inch, Color: White, Size: 24 Inch, Color: White
My bathroom renovation is turning out great. These shelves are beautifully stable and show no visible assembly. The idea of these floating shelves is brilliant.
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Reviewed in the United States on February 19, 2026
★★★★★ 5
Beautiful and sturdy
Size: 24 Inch, Color: White
Excellent quality shelves. All hardware came with them and also the stickers to cover the screws. I also placed a plant on one of the shelves and it’s not leaning and again very nice and secure.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Great shelves
Size: 24 Inch, Color: White
Easy to assemble and comes with everything you need for drywall or wood. Nice color and texture and comes with stickers to hide the holes underneath. I bought two sets of three. These are very long, so I recommend just using two at a time.
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Reviewed in the United States on February 8, 2026
★★★★★ 5
JAXPETY Room Divider Panel 6Ft Privacy Screen Wall Divider 88" W x 73" H - 3 Panel Black
Color: Black, Size: 3-Panel, Color: Black, Size: 3-Panel
I was looking for a screen to use while making video calls. I am on a budget, wanted something easy to put together, and would hide my apt in the background. Being on a budget, I thought my purchase qualified for the coupon. I was mistaken but contacted the seller. I received a quick response explaining how the coupon was applied. I was happy with the quick response and explanation which I verified when I went back to the page.
The once all put together the screens are light weight and fairly easy to move. they do not seem to be made for easy daily breakdown. However, if you should need to take them apart to move or something, easy to break down. Depending on lighting will depend on if you find them transparent. I don't mind possible vague outlines; I was looking so no real details of my belongings in the background could be seen (shelves; figurines; etc.) My apt living room has no overhead light source, so floor lamps give light. In the 3 photos of 2 of the screens put together; the first is with a lamp in front and back of the screen as well as a tv on. The next has the tv off lamps still on and the screen reflecting the pc monitors. The third is with both lamps and the tv off, monitors on but not as reflective.
In the box, you have all the parts you need as well as a small tool and an instruction manual. Item 'bags' are number [though they may come off in the box] to assist with assembly. Now assembly can be easy or hard depending on your abilities and the area you are working in. I have bad knees, so kneeling was not an option for me. My first attempt to put this together, I put the 'feet bases' on while still connecting the top bar. It made it twice as hard, and I stretched the fabric more than was necessary causing wholes around some of the stitching and stretching them a little. As well as causing some stitching to come undone on one of the pictured areas. Once I took off the 'feet bases', I had an easier time to screwing in the top bars. You will still need some hand strength, which I don't have much of, but it is possible. I use the grip things to open pickles jars.
Once the screens were assembled, I followed the instructions of tying an outer screen to the inner screen and using the Velcro 'privacy flaps' to complete the connection. I have what I think is low shag carpeting which they were able to stand stably on once I wiggled them into standing straight up and in place.
Given these post pandemic times, I am overall happy with both the divider and the price. The 2 things I do not like about the divider is the difficulty putting in the top bar [after connecting the top and sides] and storability when not in use issue I am having. Others with larger space will likely not have the last issue.
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Reviewed in the United States on April 19, 2025