Avem peste 6.000.000 de produse de la magazine si vanzatori profesionisti in Okazii.ro Marketplace
Cos cumparaturi
Favorite
Ai nevoie de ajutor ?
Catalog produse
Sisteme server
 
 

2 gb ddr de la Dell in Sisteme server

(13520 oferte)
Seteaza alerta
Filtre selectate:
Sorteaza 2 gb ddr in Sisteme server dupa:
Vizualizeaza ca: Afisare Lista Afisare galerie
-23%
Cumpara ieftin Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 16 GB DDR3 ECC; 2 x 600 GB HDD SAS; 12 L

Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 16 GB DDR3 ECC; 2 x 600 GB HDD SAS; 12 L

3.223,25 Lei 2.470,18 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 32 GB DDR3 ECC; 2 x 480 GB SSD ENTERPRIS

Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 32 GB DDR3 ECC; 2 x 480 GB SSD ENTERPRIS

4.834,20 Lei 3.705,27 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 16 GB DDR3 ECC; 2 x 480 GB SSD ENTERPRISE N

Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 16 GB DDR3 ECC; 2 x 480 GB SSD ENTERPRISE N

4.963,29 Lei 3.803,58 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 32 GB DDR3 ECC; 2 x 960 GB SSD ENTERPRISE N

Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 32 GB DDR3 ECC; 2 x 960 GB SSD ENTERPRISE N

5.452,76 Lei 4.178,74 Lei
Livrare gratuita la 5 produse comandate

Cautari similare

-23%
Cumpara ieftin Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 32 GB DDR3 ECC; 2 x 600 GB HDD SAS; 12 Luni

Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 32 GB DDR3 ECC; 2 x 600 GB HDD SAS; 12 Luni

3.013,47 Lei 2.309,72 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 32 GB DDR3 ECC; 2 x 600 GB HDD SAS; 12 Luni

Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 32 GB DDR3 ECC; 2 x 600 GB HDD SAS; 12 Luni

3.336,20 Lei 2.557,19 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 16 GB DDR3 ECC; 2 x 480 GB SSD ENTERPRIS

Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 16 GB DDR3 ECC; 2 x 480 GB SSD ENTERPRIS

4.680,90 Lei 3.587,75 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 32 GB DDR3 ECC; 2 x 960 GB SSD ENTERPRIS

Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 32 GB DDR3 ECC; 2 x 960 GB SSD ENTERPRIS

5.815,83 Lei 4.456,72 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 16 GB DDR3 ECC; 2 x 960 GB SSD ENTERPRIS

Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 16 GB DDR3 ECC; 2 x 960 GB SSD ENTERPRIS

5.662,53 Lei 4.339,20 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 16 GB DDR3 ECC; 2 x 960 GB SSD ENTERPRISE N

Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 16 GB DDR3 ECC; 2 x 960 GB SSD ENTERPRISE N

5.299,46 Lei 4.061,22 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 32 GB DDR3 ECC; 2 x 200 GB SSD ENTERPRISE;

Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 32 GB DDR3 ECC; 2 x 200 GB SSD ENTERPRISE;

3.306,62 Lei 2.534,59 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 16 GB DDR3 ECC; 2 x 960 GB SSD ENTERPRIS

Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 16 GB DDR3 ECC; 2 x 960 GB SSD ENTERPRIS

5.339,80 Lei 4.092,86 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 16 GB DDR3 ECC; 2 x 600 GB HDD SAS; 12 L

Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 16 GB DDR3 ECC; 2 x 600 GB HDD SAS; 12 L

2.900,52 Lei 2.222,71 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 16 GB DDR3 ECC; 2 x 960 GB SSD ENTERPRISE N

Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 16 GB DDR3 ECC; 2 x 960 GB SSD ENTERPRISE N

5.622,19 Lei 4.308,69 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 16 GB DDR3 ECC; 2 x 600 GB HDD SAS; 12 Luni

Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 16 GB DDR3 ECC; 2 x 600 GB HDD SAS; 12 Luni

3.182,90 Lei 2.439,67 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 32 GB DDR3 ECC; 2 x 600 GB HDD SAS; 12 L

Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 32 GB DDR3 ECC; 2 x 600 GB HDD SAS; 12 L

3.053,81 Lei 2.340,23 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 32 GB DDR3 ECC; 2 x 200 GB SSD ENTERPRISE;

Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 32 GB DDR3 ECC; 2 x 200 GB SSD ENTERPRISE;

3.629,35 Lei 2.780,93 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 16 GB DDR3 ECC; 2 x 480 GB SSD ENTERPRIS

Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 16 GB DDR3 ECC; 2 x 480 GB SSD ENTERPRIS

5.003,63 Lei 3.835,22 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 32 GB DDR3 ECC; 2 x 480 GB SSD ENTERPRISE N

Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 32 GB DDR3 ECC; 2 x 480 GB SSD ENTERPRISE N

5.116,58 Lei 3.921,10 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 32 GB DDR3 ECC; 2 x 200 GB SSD ENTERPRIS

Server Dell PowerEdge R620, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2667 V2 3.3 GHz up to 4.0 GHz; 32 GB DDR3 ECC; 2 x 200 GB SSD ENTERPRIS

3.346,96 Lei 2.565,10 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 16 GB DDR3 ECC; 2 x 200 GB SSD ENTERPRISE;

Server Dell PowerEdge R720, 8 Bay 2.5 inch, 2 Procesoare, Intel 6 Core Xeon E5-2640 2.5 GHz up to 3.0 GHz; 16 GB DDR3 ECC; 2 x 200 GB SSD ENTERPRISE;

3.153,32 Lei 2.417,07 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 16 Core Xeon E5-2697A V4 2.6 GHz up to 3.6 GHz; 128 GB DDR4 ECC; 2 x 600 GB HDD SAS; 1

Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 16 Core Xeon E5-2697A V4 2.6 GHz up to 3.6 GHz; 128 GB DDR4 ECC; 2 x 600 GB HDD SAS; 1

5.698,84 Lei 4.367,45 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 16 Core Xeon E5-2697A V4 2.6 GHz up to 3.6 GHz; 64 GB DDR4 ECC; 2 x 200 GB SSD ENTERPR

Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 16 Core Xeon E5-2697A V4 2.6 GHz up to 3.6 GHz; 64 GB DDR4 ECC; 2 x 200 GB SSD ENTERPR

4.754,86 Lei 3.644,25 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2620 V4 2.1 GHz up to 3.0 GHz; 256 GB DDR4 ECC; 2 x 480 GB SSD ENTERPRI

Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2620 V4 2.1 GHz up to 3.0 GHz; 256 GB DDR4 ECC; 2 x 480 GB SSD ENTERPRI

8.971,84 Lei 6.876,05 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 18 Core Xeon E5-2697 V4 2.3 GHz up to 3.6 GHz; 256 GB DDR4 ECC; 2 x 480 GB SSD ENTERPR

Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 18 Core Xeon E5-2697 V4 2.3 GHz up to 3.6 GHz; 256 GB DDR4 ECC; 2 x 480 GB SSD ENTERPR

8.676,00 Lei 6.648,92 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 16 Core Xeon E5-2697A V4 2.6 GHz up to 3.6 GHz; 256 GB DDR4 ECC; 2 x 600 GB HDD SAS; 1

Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 16 Core Xeon E5-2697A V4 2.6 GHz up to 3.6 GHz; 256 GB DDR4 ECC; 2 x 600 GB HDD SAS; 1

7.204,90 Lei 5.521,18 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 18 Core Xeon E5-2697 V4 2.3 GHz up to 3.6 GHz; 256 GB DDR4 ECC; 2 x 200 GB SSD ENTERPR

Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 18 Core Xeon E5-2697 V4 2.3 GHz up to 3.6 GHz; 256 GB DDR4 ECC; 2 x 200 GB SSD ENTERPR

6.866,04 Lei 5.262,41 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 18 Core Xeon E5-2697 V4 2.3 GHz up to 3.6 GHz; 256 GB DDR4 ECC; 2 x 960 GB SSD ENTERPR

Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 18 Core Xeon E5-2697 V4 2.3 GHz up to 3.6 GHz; 256 GB DDR4 ECC; 2 x 960 GB SSD ENTERPR

9.012,18 Lei 6.906,56 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 16 Core Xeon E5-2697A V4 2.6 GHz up to 3.6 GHz; 128 GB DDR4 ECC; 2 x 960 GB SSD ENTERP

Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 16 Core Xeon E5-2697A V4 2.6 GHz up to 3.6 GHz; 128 GB DDR4 ECC; 2 x 960 GB SSD ENTERP

8.138,12 Lei 6.236,47 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 12 Core Xeon E5-2690 V3 2.6 GHz up to 3.5 GHz; 256 GB DDR4 ECC; 2 x 960 GB SSD ENTERPR

Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 12 Core Xeon E5-2690 V3 2.6 GHz up to 3.5 GHz; 256 GB DDR4 ECC; 2 x 960 GB SSD ENTERPR

8.872,33 Lei 6.799,21 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2620 V4 2.1 GHz up to 3.0 GHz; 128 GB DDR4 ECC; 2 x 480 GB SSD ENTERPRI

Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2620 V4 2.1 GHz up to 3.0 GHz; 128 GB DDR4 ECC; 2 x 480 GB SSD ENTERPRI

7.143,05 Lei 5.474,85 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2620 V4 2.1 GHz up to 3.0 GHz; 128 GB DDR4 ECC; 2 x 960 GB SSD ENTERPRI

Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2620 V4 2.1 GHz up to 3.0 GHz; 128 GB DDR4 ECC; 2 x 960 GB SSD ENTERPRI

7.801,95 Lei 5.978,83 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 16 Core Xeon E5-2697A V4 2.6 GHz up to 3.6 GHz; 128 GB DDR4 ECC; 2 x 200 GB SSD ENTERP

Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 16 Core Xeon E5-2697A V4 2.6 GHz up to 3.6 GHz; 128 GB DDR4 ECC; 2 x 200 GB SSD ENTERP

5.991,98 Lei 4.592,32 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2620 V4 2.1 GHz up to 3.0 GHz; 64 GB DDR4 ECC; 2 x 960 GB SSD ENTERPRIS

Server Dell PowerEdge R630, 8 Bay 2.5 inch, 2 Procesoare, Intel 8 Core Xeon E5-2620 V4 2.1 GHz up to 3.0 GHz; 64 GB DDR4 ECC; 2 x 960 GB SSD ENTERPRIS

6.887,55 Lei 5.278,23 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R740, 16 Bay 2.5 inch, 2 Procesoare, Intel 20 Core Xeon Gold 6248 2.5 GHz up to 3.9 GHz; 128 GB DDR4 ECC; 2 x 960 GB SSD ENTERPR

Server Dell PowerEdge R740, 16 Bay 2.5 inch, 2 Procesoare, Intel 20 Core Xeon Gold 6248 2.5 GHz up to 3.9 GHz; 128 GB DDR4 ECC; 2 x 960 GB SSD ENTERPR

16.375,76 Lei 12.549,78 Lei
Livrare gratuita la 5 produse comandate
-23%
Cumpara ieftin Server Dell PowerEdge R640 NVMe, HBA, 10 Bay 2.5 inch, 2 Procesoare, Intel 14 Core Xeon Gold 6132 2.6 GHz up to 3.7 GHz; 1024 GB DDR4 ECC; 2 x 960 GB

Server Dell PowerEdge R640 NVMe, HBA, 10 Bay 2.5 inch, 2 Procesoare, Intel 14 Core Xeon Gold 6132 2.6 GHz up to 3.7 GHz; 1024 GB DDR4 ECC; 2 x 960 GB

23.050,85 Lei 17.666,42 Lei
Livrare gratuita la 5 produse comandate

Cautari similare


Ar putea sa te intereseze

Istoricul tau de navigare

  • Pantofi de lucru NEO, O1 SRC, fara metal, marimea 43, protectie basic, talpa antiderapanta, absorbtie soc, confort ridicat
  • C9133 ECHIPAMENTE PERIFERICE ALE CALCULATOARELOR NUMERICE - ACAD. A. AVRAMESCU
  • Creion trasat/punctator 4x150 mm Neo Tools 33-067 HardWork ToolsRange
  • Ecran / Display Xiaomi Note 9t/ Note9 5g, Samsung
Continut

Magazine.Okazii.ro

  • Acces la mii de cumparatori
  • Fara limita de produse puse in vanzare
  • Platesti doar daca vinzi
Deschide-ti magazin - Okazii.ro