https://vea.amseko.cz/link/7455

D-Link DES-1005P revize B1

D-Link DES-1005P (revize B1) je 5-portový 10/100M PoE switch bez managementu, jehož první čtyři porty podporují PoE+ napájení 802.3af/802.3at, tj. max. 30W na port. Celkový PoE výkon přepínače je 60W. Ze switche tak lze napájet až 4 PoE zařízení, jako jsou IP telefony, Wi-Fi přístupové body nebo IP kamery. Switch je bez větráků, s externím napájecím adaptérem, v kovovém provedení pro položení na poličku. Specifikace: " Provedení: desktop, na poličku " 5x 10/100BASE-T porty RJ-45 " PoE+ 802.3af/802.3at napájení na portech č. 1-4, max. 30W na port " Celkový POE výkon switche: 60W " Automatické nastavení MDI/MDI-X na všech portech " Standardy: IEEE 802.3 10BASE-T Ethernet (twisted-pair copper), IEEE 802.3u 100BASE-TX Fast Ethernet (twisted-pair copper), ANSI/IEEE 802.3 NWay auto-negotiation, IEEE 802.3x flow control, IEEE 802.1p QoS " Metoda přepínání: Store-and-forward " Switching fabric: 1Gbps " Forwarding rate: 0,744 Mpps " MAC tabulka: 2K záznamů " Vyrovnávací paměť (RAM Packet Buffer): 64 KB " Rozměry: 100 x 98 x 28 mm " Hmotnost: 0,26 kg " Napájení: externí zdroj 53.5 V / 1.2 A (součástí dodávky) " Spotřeba: 63,26W maximum (PoE on), 3,61W maximum (PoE off), 0,68 W (standby) " Provozní teploty: 0?C až 40?C " Provozní vlhkost: 0% až 95% relativní vlhkost, nekondenzující

Links

Datové schránky

Domény dle ranků

DoménaPořadí dle PageRankPořadí dle Harmonic Rank
mysql.com642149
microsoft.com2823
anl.gov3025554
lithub.com3388907
mozilla.org4232
fontawesome.com2140
bloomberg.com24071
digg.com417179
google.de102127
wordpress.org1214
dribbble.com353178
fernuni-hagen.de4272795
yahoosites.com4343940
jw.org4048624
britannica.com851349
aclweb.org2590391
google.no2514564
ebay.co.uk1256269
pypi.org803330
nodejs.org149343
americanbar.org1901586
nvidia.com866258
nationaltrust.org.uk2496634
newsweek.com253277
usc.edu1700808
uxplanet.org3048399
ceh.ac.uk4268810
feedly.com700830
onesignal.com344574
jetphotos.com4937879
rebrand.ly2235421
time.com354134
coda.io4196789
tumblr.com7731
addtoany.com153337
man7.org3057897
au.int2737563
dropboxusercontent.com960227
bing.com183174
vnexpress.net2964675
bmwblog.com4666833
mashable.com657433
aliexpress.com596954
allaboutcookies.org177351
oracle.com22977
utexas.edu1329699
huffingtonpost.com368148
netlify.app1350394
gmpg.org99
nobelprize.org2033482
wordpress.com3718
bristolpost.co.uk4251928
ssrn.com958257
jsfiddle.net81483
openstreetmap.org470307
rollingstone.com1195648
theconversation.com783296
hp.com736214
uxdesign.cc2839446
sap.com778246
eff.org629691
jetbrains.com1124364
aclu.org2086919
npr.org309118
surveymonkey.com271406
nginx.org156792
pewforum.org2995673
springernature.com2720863
lpages.co1780698
slideshare.net219200
businessdailyafrica.com3604733
healthline.com592318
opera.com141225
osce.org2897649
google.com.au1022909
elsevier.com415386
jsdelivr.net3437
pcworld.com1813877
addthis.com5664
booking.com538868
ox.ac.uk638254
dailymail.co.uk453165
foreignaffairs.com2949725
itsnicethat.com3498743
sendgrid.com2522955
africanews.com3961845
aa.com.tr2905637
windows.net341268
bl.uk1962333
ed.ac.uk2369993
entrepreneur.com620577
alchemer.com3196775
sagepub.com367198
gnu.org215114
web.app2608458
altervista.org1369503
un.org263113
washingtontimes.com2328516
mid.ru3471742
cato.org3100620
notion.so992847
timesofisrael.com2440592
fool.com2321941
flutterwave.com4236849
pcmag.com838524
vim.org2435454
googleblog.com42685
ifaw.org4022937
cgsociety.org4348817
unesco.org732616
ibb.co438209
google.co.uk239144
ssllabs.com2004957
discord.com213966
caniuse.com180573
huffingtonpost.co.uk1010383
mailchi.mp337568
amazon.com4625
springer.com321166
buzzsprout.com1142949
pnas.org981340
gmail.com432128
symantec.com1089623
amzn.to227537
kobe-u.ac.jp3785641
squarespace.com220176
interfax.ru3224680
wix.com100195
amazon.de302887
theyworkforyou.com3786936
noscript.net2364745
bitly.com384934
ucsd.edu1264636
reuters.com28487
twilio.com2198979
psu.edu777366
seattletimes.com622397
dw.com1186400
hindustantimes.com2851812
smh.com.au1236334
bower.io2648658
theguardian.com16169
acm.org246155
digitaloceanspaces.com1092453
findlaw.com1482426
ufl.edu1405310
letterboxd.com3359553
france24.com2076442
350.org3524750
latimes.com473362
yahoo.com9641
iubenda.com287471
worldbank.org555150
netvibes.com2270419
w3techs.com2237836
noaa.gov608315
deepmind.com3058512
ietf.org16997
polyfill.io24122
networkadvertising.org136521
mtsu.edu4093818
nzherald.co.nz2396467
upenn.edu668135
placehold.it514535
reactjs.org1043702
js.org430497
ethz.ch2245994
reddit.com10646
transparency.org2678489
cbsnews.com637517
dailystar.com.lb4293933
sun.com1000260
gwtproject.org4171709
menafn.com4265981
voanews.com1982475
reliefweb.int2450693
justice.gov846930
kit.edu2368447
ow.ly1553635
mozilla.com465238
newsru.com4396852
nih.gov13567
azurewebsites.net607263
indexmundi.com3855915
coursera.org1689628
wikimedia.org19275
googleadservices.com58405
design.google3706832
leadpages.net2215779
politico.com969243
ilo.org1084365
usembassy.gov1682414
unsplash.com17186
openid.net2266511
stumbleupon.com474304
jimdo.com116377
scribblelive.com2853491
pinimg.com743326
privacypolicytemplate.net2899987
prnewswire.com322119
gartner.com648656
libsyn.com871609
datatables.net364469
podbean.com927267
politico.eu2251598
creativecommons.org9753
service.gov.uk593350
nike.com1183211
fc2.com487756
opensource.org413771
dailymaverick.co.za3807827
imdb.com14578
jhu.edu829262
unicode.org1367581
nielsen.com267995
oregonlive.com2436481
t.me11996
staticflickr.com412186
whitehouse.gov495439
ssl-images-amazon.com434309
moz.com572218
telegraph.co.uk407147
flipboard.com2673884
splashthat.com742731
icio.us793344
rfa.org3838737
cbsistatic.com3394861
golang.org1360882
bazaarvoice.com1352759
google.nl518924
donorbox.org2042597
facebook.net4483
haaretz.com1388545
yandex.ru3258
vogue.com1220279
pixabay.com444164
unity.com2802911
avast.com2586876
debian.org408285
thedailybeast.com1404374
jython.org3974920
variety.com929605
mod.uk3381582
svbtle.com3973975
gstatic.com1111
thenation.com2561610
oilprice.com3808803
city-data.com3237715
vk.com6460
ca.gov264514
bandcamp.com251167
insurancejournal.com1091860
programmableweb.com3989718
hrc.org1507357
nation.co.ke3370859
foreignpolicy.com2282499
githubusercontent.com307121
manta.com3064593
recyclenow.com3923932
klokantech.com3197793
wp.me8556
go.com441314
refworld.org3731850
crates.io3054782
polymer-project.org2881571
over-blog.com1753923
zoho.com920547
marketwatch.com769457
techradar.com1390746
spreaker.com2697862
sourcewatch.org3389639
arts.gov3075752
epa.gov489346
scribd.com395146
hackerone.com196790
mitre.org1820967
ubuntu.com726234
aiga.org1683493
twimg.com228153
ipcc.ch1533452
bund.de134298
uci.edu1857747
iith.ac.in4771945
google.com23
hotfrog.com4038764
herokuapp.com458204
natureindex.com4744968
getpocket.com437219
indeed.com493695
reverbnation.com1291264
sciencealert.com2974643
mail.ru181385
weibo.com12891
python.org255158
arfadia.com3684776
aljazeera.com1265294
aol.com532668
tfl.gov.uk1985494
hypotheses.org3108567
spain.info3999707
wisc.edu815825
ocks.org1826486
gpsvisualizer.com4594965
vanityfair.com1339335
bloglines.com2719722
greenpeace.org1123247
aei.org3076751
washington.edu730196
verywellhealth.com2705867
docker.com365163
android.com27395
cloudinary.com234216
torontosun.com3502694
jimstatic.com168938
nbcnews.com485220
poynter.org665918
amnesty.org1451480
soundcloud.com11055
mariadb.com3082529
pingdom.com935841
cleantechnica.com3255732
theweek.co.uk4161787
monday.com2569611
daringfireball.net1841437
schema.org6057
jisc.ac.uk2847712
patreon.com492533
itv.com1763403
businesswire.com379477
imageshack.com1159465
stanford.edu30081
monthlyreview.org4611992
sxsw.com499540
optimizely.com356306
doubleclick.net5263
ibm.com276181
kdpcommunity.com4781871
windows.com1986798
newyorker.com614210
weforum.org586142
wetransfer.com1198502
inthesetimes.com4003922
uspto.gov1354664
500px.com1147289
is.gd2204788
fao.org794319
wwf.org.uk3065604
blogger.com193125
disqus.com277224
xkcd.com1359959
elastic.co923229
investopedia.com685666
intensedebate.com3169622
searchengineland.com1152921
etsy.com211402
plos.org702946
storify.com1569259
baidu.com4068
parliament.uk988379
oxfam.org.uk3507853
codecademy.com2707895
cambridge.org703191
firefox.com2228864
sonatype.org2716621
kleinezeitung.at3904886
wsj.com23066
curbed.com2488534
firebaseapp.com1701546
pexels.com551187
today.com1284670
townnews.com2945653
constantcontact.com351697
yahoo.co.jp186566
timesonline.co.uk2669527
salesforce.com204440
akamai.com1060811
jstor.org1062363
ingress.com4278831
kickstarter.com490332
spotify.com11461
example.com370136
audioboo.fm3473684
yoast.com1009826
metoffice.gov.uk2550578
bka.gv.at1208822
intuit.com1410856
umn.edu1196629
cmu.edu537462
unicef.org527744
articulate.com2770661
hrw.org1120412
sciencemag.org653201
uah.edu3852646
msn.com483302
hubspot.com165312
tinyurl.com290197
citizenlab.ca2352669
1drv.ms1686360
crossref.org2539766
pubmatic.com312701
urbandictionary.com2298754
laweekly.com2896444
thinkprogress.org2969829
khanacademy.org1956804
globenewswire.com581162
fb.watch1071448
ew.com1963484
wikihow.com932617
theoutline.com3952816
unfccc.int1725416
mediaplex.com1173561
lrb.co.uk3768823
wikibooks.org2477409
eventbrite.co.uk624261
kinstacdn.com1692777
blogspot.fr1827899
kaggle.com2568555
spie.org3603821
stonewall.org.uk2982716
xinhuanet.com691282
maven.org1836328
bbci.co.uk2762685
evernote.com727138
rspca.org.uk3499969
thedailystar.net3371659
leeds.ac.uk2609618
berkeley.edu546352
youtube.com66
flock.com3387607
samsung.com632580
doi.org176208
invisionapp.com1862325
northwestern.edu1444687
zendesk.com157356
googlesyndication.com3848
alibabagroup.com1772740
tableau.com1219704
medium.com7247
shortpixel.ai330588
paypalobjects.com121286
shields.io152359
apnews.com701159
sott.net4711964
c2es.org4087970
fbcdn.net3694
businessgreen.com4189991
statcounter.com120154
uni-konstanz.de3600760
ebay.com394417
wikidata.org2512631
ogp.me84600
statista.com348342
deviantart.com628143
nasa.gov42393
appsto.re2470472
treehugger.com2394552
godaddy.com69116
fineartamerica.com2447460
oreilly.com759518
apsense.com4346739
tiktok.com247124
kernel.org1127248
unpkg.com71126
vancouversun.com3091633
sky.com1668794
apple.com1617
arxiv.org357145
googlesource.com1650249
facebook.com32
msdn.com1483791
twitter.com45
mdx.ac.uk4168883
environmentalleader.com3893767
git-scm.com603170
techtarget.com1126926
merriam-webster.com1296773
accessnow.org2069425
gravatar.com1713
dailymotion.com516916
iwpr.net4072805
scroll.in2484855
qq.com39207
thetimes.co.uk1004373
goo.gl4526
telegram.me296353
github.io4849
thepetitionsite.com3862834
weebly.com9852
privacyshield.gov154223
theprint.in3549727
slurl.com4616977
viki.com3536428
cpj.org2713507
indiatoday.in2912589
upwork.com1392544
licdn.com1218445
thenextweb.com1191441
flightradar24.com3517606
drupal.org269513
unep.org1941496
sfu.ca1237317
heroku.com410824
yell.com2825735
pcdn.co2206726
ringcentral.com2865713
podomatic.com3034519
fiverr.com1758893
fortune.com542253
about.com1069676
calendly.com260270
vice.com565129
squareup.com525284
visualstudio.com580538
whatwg.org160671
sourceforge.net198305
cam.ac.uk974435
ft.com155106
css-tricks.com1023881
bitbucket.org645221
nytimes.com12550
qos.ch3207640
usf.edu2409466
gofundme.com535869
outlook.com248213
azureedge.net262331
twitch.tv210278
semver.org679231
loc.gov664520
psychologytoday.com644632
att.com1174549
illinois.edu1299299
eventbrite.com217396
atlassian.com371498
secureservercdn.net292456
html5rocks.com2636819
googlecode.com343290
readthedocs.io540171
aboutcookies.org245407
dell.com1108734
rcplondon.ac.uk4128956
unep-wcmc.org4284997
dukeupress.edu3580763
tripadvisor.com194683
digitaltrends.com1226372
t.co5743
polito.it3767638
forms.gle146131
mit.edu29780
npmjs.com117107
gizmodo.com1156585
usnews.com675985
inc.com520655
history.com1251358
verisign.com956525
newgrounds.com3618565
biorxiv.org2201479
buffer.com1189603
getbootstrap.com274528
arcgis.com482612
trello.com647173
discovery.com2848885
ccm.net4234802
qz.com738161
scientificamerican.com1134890
ucpress.edu3148584
freecodecamp.org456380
refinery29.com1721455
bigcommerce.com403719
spectator.co.uk3081677
ok.ru329371
thinkwithgoogle.com600413
umich.edu975703
sierraclub.org2997674
foursquare.com1119873
tupalo.com4316799
googleoptimize.com543688
gitlab.io1357492
armorgames.com4426892
gnupg.org2494599
whatsapp.com4744
secondlife.com2195615
ieee.org554156
mozillazine.org2715583
free.fr505463
occrp.org4101935
gust.com4205650
harvard.edu258102
bfarm.de3324925
amazonaws.com3330
usatoday.com346175
amazon.co.uk259562
doubleclickbygoogle.com2734749
iconarchive.com3386700
fastcodesign.com2354378
coe.int944355
youronlinechoices.com137367
messenger.com76627
gatech.edu1395311
billboard.com1733730
diigo.com2307280
somersethouse.org.uk4206854
dwcdn.net2564660
bbc.com268104
blogspot.co.uk674185
rawgit.com129303
wri.org2650654
live.com303236
filesusr.com124250
york.ac.uk2757602
wpengine.com214230
ecwid.com895368
nature.com347152
standard.co.uk1280322
engadget.com715172
2mdn.net249912
usenix.org2557986
goodreads.com390115
wixsite.com14289
w.org54
house.gov667323
webkit.org1684651
youtu.be4120
infoworld.com2491758
huffpost.com1047900
climatechangenews.com3872944
umd.edu1386690
total.com3448780
gentoo.org2509474
snapchat.com545874
ampproject.org179133
theglobeandmail.com1078297
nist.gov687410
atlassian.net1148801
searchenginejournal.com1289962
hatenablog.com1914705
proofpoint.com425774
apache.org14899
cisco.com575601
researchgate.net332120
steampowered.com500139
who.int15170
g.co1054244
discordapp.com760951
mapbox.com310313
guardian.co.uk858301
cnsnews.com4163905
emarketer.com823560
jekyllrb.com1116530
wikia.com1294432
feedburner.com278242
linktr.ee544184
criteo.com382239
ramsar.org4042998
tandfonline.com491292
imgix.net427389
buzzfeed.com718522
blog.google692140
webs.com985501
youronlinechoices.eu324806
theage.com.au2513450
rferl.org3093630
senate.gov716287
flippa.com3053720
amnesty.org.uk3709844
wired.com352110
theverge.com318100
scene7.com1922626
giphy.com16373
about.me673199
redis.io2742785
hackernoon.com2958910
thehindu.com1423411
hybris.com4149878
unwomen.org1681459
thelancet.com798434
bazel.build2344872
biomedcentral.com548361
superuser.com2498476
algorithmia.com4478729
fb.com43193
surveygizmo.com1776551
google.co.jp172663
middleeasteye.net3727896
googlelabs.com4384999
cdc.gov144188
brill.com3352757
mckinsey.com512765
research.google2501504
ftc.gov282542
npg.org.uk3878781
redhat.com976714
force.com372228
ofcom.org.uk2297692
riken.jp3687591
icann.org218800
ewn.co.za4417927
archive.org13072
google-analytics.com3529
hearstapps.com3584961
last.fm1101769
accenture.com686917
stackoverflow.com19190
cnn.com17562
bbc.co.uk19065
columbia.edu678194
appspot.com355112
cornell.edu460105
hsbc.com3087645
brew.sh966939
interpol.int2714575
meetup.com431160
nngroup.com1657696
mg.co.za3495738
omny.fm2479556
airbnb.com463226
d3js.org677348
chicagotribune.com1138706
pewresearch.org294202
googleapis.com11
raspberrypi.org2516891
haskell.org1964392
wp.com5027
scala-sbt.org3593587
moneyweb.co.za4662980
google.ca507320
knightlab.com1994596
zoom.us14084
charitycommission.gov.uk3285851
wayfair.com2793625
instagram.com87
wiley.com286123
hubspot.net443736
fcc.gov979813
theecologist.org4081988
hhs.gov536960
theatlantic.com462141
pinterest.com2215
iglobal.co4688865
mixcloud.com1003347
cnbc.com327300
cloudflare.com1012
playstation.com1146809
linuxfoundation.org2240762
bit.ly6228
nationalgeographic.com419470
copyright.gov547708
stripe.com99266
businessweek.com1951770
eepurl.com241256
thoughtworks.com2892526
bangkokpost.com2999557
adroll.com953797
sciencedirect.com242151
academia.edu926273
sophos.com2466978
mk.ru2614839
abc.net.au683237
typepad.com305232
hbs.edu1924840
g.page202222
chromium.org627130
jenkins-ci.org2921579
jimcdn.com188647
box.com831464
sharethis.com123206
visa.com1799903
discord.gg301590
rutgers.edu1434241
neweconomics.org4132989
list-manage.com9474
trustpilot.com93875
cnet.com433341
blogspot.com5424
hbr.org387117
fda.gov439265
gifer.com4065843
linkedin.com1410
eclipse.org1103192
chamberofcommerce.com4068947
yelp.com158177
speakerdeck.com1659642
wa.me111888
unctad.org2446572
iom.int2817689
snopes.com2336543
googlegroups.com2390509
europa.eu4935
u-tokyo.ac.jp1868398
ytimg.com13998
canva.com708438
usgs.gov1224913
zoopla.co.uk3670681
clickbank.net800427
smartadserver.com1048672
netdna-ssl.com328276
openai.com2507329
power-technology.com4584983
iucnredlist.org2843682
harpercollins.co.uk4257857
netflix.com650710
hessen.de1832796
ecowatch.com3619778
hootsuite.com978541
yandex.com711880
amazon-adsystem.com184327
pearltrees.com2392288
instapaper.com2916345
naver.com243510
brookings.edu980429
whatbrowser.org750772
sjsu.edu3416686
commondreams.org3375848
adform.net753711
blockchair.com4578820
page.link1333523
flickr.com5345
sitepoint.com1153952
undp.org1248401
usip.org3821982
netlify.com1290990
dev.to2267741
dropbox.com143180
venturebeat.com801395
wufoo.com503784
mediawiki.org925490
newrelic.com722904
nejm.org1185387
fandom.com785594
youtube-nocookie.com113132
macromedia.com5576
unity3d.com1150251
livestream.com80619
sec.gov671753
freepik.com682252
photobucket.com636644
monitor.co.ug3799972
slate.com1028506
wattpad.com2431321
e-estonia.com4531898
iana.org209255
googleusercontent.com7539
issuu.com16292
timeslive.co.za3646717
jquery.com2022
ucla.edu998665
wixstatic.com2938
pbs.org539189
soilassociation.org3955958
wipo.int643478
slite.com4778902
ico.org.uk261336
elasticsearch.org3248576
w3schools.com398183
wikipedia.org2316
metro.co.uk2289786
desmogblog.com4579953
democracynow.org2696500
scala-lang.org2583449
codepen.io534443
chrome.com804271
hatena.ne.jp272838
independent.co.uk464182
citrix.com1714390
vimeo.com2719
ai.google2419418
scoop.it748370
gitlab.com361169
business.site568274
arstechnica.com1008485
shutterstock.com945652
ycombinator.com1199842
uk.com986338
peta.org3023548
qgiv.com3824971
instructure.com2422388
livejournal.com526111
vox.com938531
bostonreview.net3942908
symbaloo.com4227728
state.gov649393
quora.com440205
mailchimp.com11582
fb.me442963
heartland.org4601984
blogspot.nl2566461
indiegogo.com1234870
haxx.se1263235
iol.co.za2959505
googletagmanager.com78
akamaihd.net67293
change.org712291
example.org2016508
rspb.org.uk2807724
gebco.net4725901
smashwords.com2758468
gumroad.com990814
lacartes.com4596973
withgoogle.com601203
myshopify.com221662
forbesimg.com3925755
adnxs.com235473
aliyuncs.com265487
alexa.com1187761
studiopress.community4799929
dmca.com480678
bbc.in3993835
inquirer.net3223613
postgresql.org1214281
irs.gov478558
osu.edu1604375
windowsphone.com1118748
rsf.org2416436
mmu.ac.uk3890807
gov.bc.ca1790559
zdnet.com605384
adobe.com1834
pastebin.com2281942
thesun.co.uk1232240
forbes.com13259
washingtonpost.com224103
wired.co.uk1309324
neocities.org2950431
usmagazine.com2808569
economist.com633137
imgur.com18588
ameblo.jp331858
us.com2209381
tuugo.us4438948
uwaterloo.ca2674996
smashingmagazine.com1281539
channel4.com1470316
paypal.com5142
technologyreview.com1707931
gr-assets.com3607943
ascentlawfirm.com1807536
doctorswithoutborders.org2833424
stackexchange.com775190
techrepublic.com1687550
techcrunch.com335308
iso.org721894
businessinsider.com18779
bootstrapcdn.com1521
github.com1936
carbonbrief.org3257837
carrd.co2363430
multiscreensite.com3293721
instructables.com1849245
archlinux.org1954422
routledge.com1674570
skype.com429889
mongabay.com3161667
devdocs.io4714866
myspace.com424109
intel.com656415
sfgate.com1274595
cloudfront.net3133
hubpages.com2644451
livechatinc.com414515
adweek.com428495
typeform.com316212
php.net233404
fastcompany.com381157
vt.edu1900408
xing.com178974
scmp.com1097339
ted.com416108
json.org1864828
brightcove.com1067369
dezeen.com2649488
rg.ru2502657
savethechildren.org.uk3875976
qualtrics.com706295
deloitte.com573382
sedo.com579608
aboutads.info127532
lego.com2517783
foxnews.com791215
irishtimes.com1436354
google.com.et4383815
w3.org5951
semrush.com400914
cutt.ly1462679
princeton.edu933217
the-dots.com4535846
nypost.com972233
j.mp2629723
real.com2699614
shopify.com6554
slack.com325101
office.com231275
uol.com.br807906
yale.edu513376
timeanddate.com1122950
pinterest.co.uk878423
material.io2562420
martinfowler.com1804272
ustream.tv2236768
behance.net256168
mpg.de1368283
mysql.com642149
microsoft.com2823