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HP 2810-24 (J9021A#ABA) 24 Gigabit Switch
Avanti IT (5056)
99.7% positive feedback
Price:
$550.00
Free shipping
Returns:
30 days returns. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
Condition:
HP J9021A ABA PROCURVE 2810 24G 24 PORT MANAGED NETWORK SWITCH J9021A.
- Buy It NowHP J9021A ABA PROCURVE 2810 24G 24 PORT MANAGED NETWORK SWITCH J9021A
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About this product
Product Identifiers
BrandHP
MPNJ9021A, J9021A#ABA
UPC0778888637006
ModelHP J9021A
eBay Product ID (ePID)1022579929
Product Key Features
Network ConnectivityWired-Ethernet (RJ-45)
Network TypeATA over Ethernet
Maximum LAN Data Rate1000 Mbps/1 Gbps
Maximum Data Transfer Rate1 Gbps
Ethernet TechnologyGigabit Ethernet (1000-Mbit/s)
Layer2
TypeEthernet Switch
Number of LAN Ports24
InterfaceEthernet (RJ-45)
Dimensions
Item Length12.7 in
Item Height1.7 in
Item Width17.4 in
All listings for this product
Ratings and Reviews
Most relevant reviews
- Jun 27, 2019Top favorable review
Great layer 2 switch for small less critical networks - weakness: clear/reset switches & updates EOL
Cheap access to basic layer 2 enterprise level gigabit switch features for more complex home users and smaller, less critical businesses -- QoS, VLANs, LACP (combine ports for higher speed), multicast management, port security at MAC or EAP (certificate/RADIUS), etc. Easy case to clean and replace fans. The biggest weaknesses are (1) that its last firmware update was end of 2017 (possibly unpatched switch exploits) and (2) that the clear and reset switches wear and break easily. NOTE: The switch bodies on the motherboard can be removed to allow emergency operation of the exposed flexible metal dome mechanism. But such emergency is a very dangerous open case operation. It risks shorting the dangling motherboard against case or giving the operator a potentially lethal shock from the exposed internal switching power supply (50K-100K voltages). Think super taser with significantly higher current than any police taser and possibly extended duration. Noise is fairly modest for rackmount switch if you have latest firmware (but pretty loud under older versions and for a few seconds after reboot). Regardless many people will not want it directly in sleeping, work, listening (TV/music) rooms or any other quiet or long inhabited space. Nor should the switch be sealed in small closets or cabinet with no air circulation or in rooms exposed to weather extremes - though the unit has pretty good operating humidity (15%-95% noncondensing) and heat tolerance (32F-113F). The command line interface (CLI) closely follows Cisco standards for the complete configuration of all features when connected by Telnet, SSH, or direct console cable. But the switch also supports a web interface for configuration of the most important basic setup items for quick and easy start. This is also a security consideration especially prior to correct configuration of limited IP certificate on switch to allow HTTPS or SSH. The CLI also supports a text menu system serving a similar purpose with slightly more advanced features (esp port aggregation).Verified purchase: YesCondition: Pre-owned
- Oct 25, 2017Top critical review
Some issues
Unit arrived packed in large-bubble bubble wrap, appropriate to the unit. The box was less sturdy than needed and was a bit squashed top, bottom, and all sides. Still, unit appeared okay, so I rolled with it. Fired it up, HP mgt software couldn't find it, couldn't see it on network, decided it had been reset to factory. That means console-only access. No problem, old configs should have been wiped anyway (best practice) and I've got a cable. Hmm, seems HP uses a different pinout and I can't connect. No issue, I'll borrow one. Erps, no one I know has one. Roll with it. I'll put it in place (home lab, not a production environment) and use it as a dumb switch/hub until the cable arrives. Yeah, not so good. Two ports won't light up, even after moving cables from other working-on-new-switch connections to those ports. Then find other ports that do "light up" can't talk to other ports on the switch. So, appears there is still *some* kind of config in place that is segregating ports, in addition to the two dead or turned-off ports. So still waiting for my HP console cable to arrive so that I can find out if I have a config turning off or blocking ports or if I have a defective unit. My fault for not investigating the cable issue when I bought (needing a cable would not have changed my purchase decision, just needed to buy that at the same time), but less thrilled with what appears to be an old config left in place OR a defective unit. Once the cable arrives (overdue), I'll investigate further and update this if possible.Verified purchase: YesCondition: Pre-owned
- Oct 15, 2018
Hp Switch
Great product. Came faster than listed. Works as advertised. However, if i could post the only complaint I have with this device would be that it is quite a bit louder that my other switch. I think it's how the fans are situated. Also, I was not able to access the web ui to properly setup the switch.Verified purchase: YesCondition: Pre-owned
- Jun 02, 2016
HP Procurve
HP has great quality switches. they have a nice layout good indicators and the ports are easy to get to.Verified purchase: YesCondition: Pre-owned
- May 26, 2020
Good but very old
It's stable but very old and to use the web gui you have to use way old dated Firefox and Java. A real pain to set up and use.Verified purchase: YesCondition: Pre-owned
- Jun 05, 2020
good money spent on this product
great deal, it works perfectly at 1/5 the cost!Verified purchase: YesCondition: Pre-owned
- Oct 16, 2018
Does what I wanted
The Web interface is in Java and only works with old browsers, but you can do all the configuration thru telenetVerified purchase: YesCondition: Pre-owned
- Apr 23, 2018
Great switch at a great price!
HP Procurve switch is a great value with lots of features.Verified purchase: YesCondition: Pre-owned
- Oct 05, 2018
Works but a little rough
Port 1 is unresponsive but all the others work well. It’s dinged up but at this price the performance is fantastic. A little fan noise but that is normal.Verified purchase: YesCondition: Pre-owned
- Apr 02, 2019
Great for system upgrade
Just upgrade my internet speed to 1000mbs. Working very well within my network providing very fast throughput.Verified purchase: YesCondition: Pre-owned
