>> taigi ble jau sakyta - L540 ne hibridas, normalus diskas ir atskirai
>> 16GB flash'o.
>>
> 
> 16gb, tai čia net langai po kurio laiko pradės skųstis vietos trūkumu, 
> tai daugiau trūkumas kompo ne privalumas, nes norėsis keisti į normalaus dydžio.

Esminis dalykas, kad yra kur ideti SSD, neatsisakant HDD .. isimi ta 16GB idedi didesni .. 
Tas 16GB naudojamas ne kaip atskiras Drive, o kaip HDD_cache..

After the removal, you have access to the mini SIM slot. Upgrading a WWAN module or 
SSD via M.2 slot (42 mm) is very simple since everything is already prepared. 
http://www.skytech.lt/asp900ns34128gmc-adata-ssd-premier-pro-sp900-128gb-2242-sata-6gbs-readwrite55053-p-198521.html
http://www.adata.com/index.php?action=product_specification&cid=3&piid=291&lan=en
Dimensions (L x W x H)   22 x 42 x 3.5mm
42mm M.2 nelabai siuo metu ir matyt, o 80mm netilps

435Lt* - http://www.skytech.lt/asp900ns34256gmc-adata-ssd-premier-pro-sp900-256gb-2242-sata-6gbs-readwrite55053-p-198522.html
ALSLT1 0 ~ 4 weeks 466.12  
ABCLT 0 ~ 4 weeks 484.71 

370Lt - http://www.skytech.lt/n3l212801-plextor-ssd-128gb-2242-sata-6gbs-mlc-trim-transfer-520mbs-p-207926.html
ABCLT 20+ 15/09/2014 410.78  
ABCLT2 20+ 16/09/2014 410.78 
ACTPL 30+ 18/09/2014 411.88

238Lt - http://www.skytech.lt/ts128gmts400-transcend-ssd-2242-sata-6gbs-128gb-mlc-readwrite-560160mbs-p-208015.html

Siuo metu dar nera daug M.2 SSD pasirinkime, bet tai tik laiko klausimas.

*******

L540 galimi priedai:
M.2 lizdas: Uz 238-435Lt* - SSD M.2 2242 (42mm) 128-256GB nenaudojant SATA lizdo !!!
SATA lizdas: SSHD 1TB+8GB 5400rpm hibridinis Seagate/Toshiba uz 313-330Lt
 ... arba standartinis 2.5" HDD
220 Lt - http://www.skytech.lt/0j22423-hdd-sata25-1tb-7200rpm32mb-7k1000-0j22423-hgst-p-143511.html 
(7200rpm, 36men, 1TB, 9.5mm aukstis)
249 Lt - http://www.skytech.lt/wd10jfcx-vidinis-diskas-red-1tb-sata3-16mb-intellipower-24x7-nasware-p-161444.html
(5400rpm, 36men, 1TB, 9.5mm aukstis, WD-RED - jei giria 3.5", tai neblogas turetu but ir 2.5")
451 Lt - http://www.skytech.lt/st2000lm003-vidinis-diskas-samsung-spinpoint-m9t-2tb-sata3-5400rpm-32mb-p-199727.html 
(5400rpm, 24men, 2TB !!! ir 9.5mm !!! - del to ir kaina kanda ... gal ir prikolas koks 256SSD + 2TB HDD laptope, tik ar reikia?)

Kad jau gausi laptop'a su 500GB hardu, tai jo panaudojimas galimas tiek stacionariam, tiek kitam laptop'e, tiek USB dezutej:
http://www.skytech.lt/ua0106-sata-drive-case-usb-p-88490.html
http://www.skytech.lt/ceb2511u3-chieftec-alubox-for-25inch-hdd-125mm-satausb30-p-177549.html
http://www.skytech.lt/zmhe135-zalman-he135-25i-sata-usb30-hardware-encryption-p-177524.html
Tarkim ~32-41 Lt .. ir turi prie laptop'o papildomai standartini ardoma (!!) 500GB USB3.0

Aisku, kad ne tik tie Lenovo laptop'ai yra .. gal koks ir Latitude sueitu .. 
http://www.nshop.lt/ kartais galima apziuret.

http://www.nshop.lt/nesiojamas-kompiuteris-dell-latitude-e5540-24
Ekranas : 15.6 FHD (1920x1080) LED Matinis
Procesoriaus savybės : Intel® Core™ i5-4310U Processor 3.0Ghz (3M Cache, minimalus greitis 2.0 GHz)
Kietasis diskas: 500GB Solid State Hybrid Drive
Darbinė atmintis: 8GB 1600MHz DDR3
Operacinė sistema: Microsoft Windows 8.1 Professional / Microsoft Windows 7 Professional
Garantija: 36 mėn.
Kaina 2499Lt

Panasaus review:
http://www.notebookcheck.net/Review-Dell-Latitude-E5540-Notebook.115887.0..html
Maintenance is made easy, and detailed instructions are included.
Many parts can be accessed after removing only a few screws.
http://www.notebookcheck.net/fileadmin/Notebooks/Dell/Latitude_E5540/IMG_1001.jpg
https://www.youtube.com/watch?v=koWbbMqL-qA

55psl - http://cdn.cnetcontent.com/7f/2a/7f2a9e9e-a475-4b81-9bc2-61a6c08b9798.pdf
Table 17. mSATA Support
with Express Card I/O and Discrete Graphic Configuration = No mSATA support on both Latitude E5440 and Latitude E5540.
     ....for other configurations mSATA is supported on both Latitude E5440 and Latitude E5540.
without Express Card I/O on Discrete Graphic and all UMA Graphic Configurations
      • Supports mSATA and WWAN on Latitude E5440
      • Supports mSATA on Latitude E5540.

Zodziu su Intel HD grafika, E5540 turetu mSATA palaikyti:
http://www.skytech.lt/vidiniai-duomenu-kaupikliai-diskai-priedai-ssd-tipo-kaupikliai-solidstate-drive-c-86_85_1407_1408.html?f=s(),g(),p(2462,2466,2467,2468,2469),k(91.99,2693.00)&frag=&fragd=0&pav=2&sort=5a&sand=0%20sf-with-ul&grp=1%20sf-with-ul&pagesize=100&page=1

Siaurinam:
http://www.skytech.lt/vidiniai-duomenu-kaupikliai-diskai-priedai-ssd-tipo-kaupikliai-solidstate-drive-c-86_85_1407_1408.html?f=s(),g(44,226),p(2462,2466,2467,2468,2469),k(91.99,2693.00)&frag=&fragd=0&pav=2&sort=5a&sand=0%20sf-with-ul&grp=1%20sf-with-ul&pagesize=100&page=1

Na ir turi galimybe pagalvoti apie SSD kokiu 240-256GB uz 367-505 Lt (nemanau, kad verta imt tuos 128GB jei nespaudzia $).