{"id":505158,"date":"2025-11-13T12:09:00","date_gmt":"2025-11-13T05:09:00","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=505158"},"modified":"2025-11-13T12:09:00","modified_gmt":"2025-11-13T05:09:00","slug":"usb-2-0","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/usb-2-0\/","title":{"rendered":"USB 2.0 l\u00e0 g\u00ec? Nh\u1eadn bi\u1ebft v\u00e0 ph\u00e2n bi\u1ec7t s\u1ef1 kh\u00e1c nhau gi\u1eefa USB 2.0 v\u00e0 USB 3.0"},"content":{"rendered":"

USB 2.0<\/b> l\u00e0 m\u1ed9t trong nh\u1eefng chu\u1ea9n k\u1ebft n\u1ed1i ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay, \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c k\u1ebft n\u1ed1i m\u00e1y t\u00ednh v\u1edbi c\u00e1c thi\u1ebft b\u1ecb ngo\u1ea1i vi nh\u01b0 \u1ed5 c\u1ee9ng, USB flash, m\u00e1y in hay c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed kh\u00e1c. Trong b\u1ed1i c\u1ea3nh c\u00f4ng ngh\u1ec7 ng\u00e0y c\u00e0ng ph\u00e1t tri\u1ec3n, vi\u1ec7c nh\u1eadn bi\u1ebft v\u00e0 ph\u00e2n bi\u1ec7t USB 3.0 v\u00e0 2.0 tr\u1edf n\u00ean c\u1ea7n thi\u1ebft, b\u1edfi t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u, thi\u1ebft k\u1ebf v\u00e0 kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 c\u00e1c thi\u1ebft b\u1ecb c\u1ee7a hai chu\u1ea9n n\u00e0y c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t r\u00f5 r\u1ec7t.<\/span><\/p>\n

USB 2.0 l\u00e0 g\u00ec?<\/b><\/h2>\n

\u0110\u00e2y l\u00e0 m\u1ed9t ti\u00eau chu\u1ea9n k\u1ebft n\u1ed1i ph\u1ed5 bi\u1ebfn trong l\u0129nh v\u1ef1c c\u00f4ng ngh\u1ec7, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Hi-Speed USB. Chu\u1ea9n n\u00e0y xu\u1ea5t hi\u1ec7n l\u1ea7n \u0111\u1ea7u v\u00e0o th\u00e1ng 4 n\u0103m 2000 v\u00e0 nhanh ch\u00f3ng tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ch\u1ee7 \u0111\u1ea1o cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed. H\u1ea7u h\u1ebft m\u00e1y t\u00ednh, \u1ed5 c\u1ee9ng di \u0111\u1ed9ng, m\u00e1y in hay c\u00e1c ph\u1ee5 ki\u1ec7n kh\u00e1c \u0111\u1ec1u trang b\u1ecb \u00edt nh\u1ea5t m\u1ed9t c\u1ed5ng USB phi\u00ean b\u1ea3n 2, gi\u00fap ng\u01b0\u1eddi d\u00f9ng d\u1ec5 d\u00e0ng trao \u0111\u1ed5i d\u1eef li\u1ec7u gi\u1eefa nhi\u1ec1u thi\u1ebft b\u1ecb kh\u00e1c nhau.<\/span><\/p>\n

\"usb-2-0-1\"<\/picture><\/p>\n

So v\u1edbi USB 1.1, t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i c\u1ee7a chu\u1ea9n 2.0 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3, \u0111\u1ea1t t\u1ed1i \u0111a 480 Mbps, \u0111\u1ee7 \u0111\u1ec3 ph\u1ee5c v\u1ee5 nhu c\u1ea7u l\u01b0u tr\u1eef, sao ch\u00e9p ho\u1eb7c chia s\u1ebb th\u00f4ng tin h\u1eb1ng ng\u00e0y. M\u1eb7c d\u00f9 ch\u1eadm h\u01a1n chu\u1ea9n USB 3.0, chu\u1ea9n 2.0 v\u1eabn \u0111\u1ea3m b\u1ea3o t\u00ednh \u1ed5n \u0111\u1ecbnh, t\u01b0\u01a1ng th\u00edch r\u1ed9ng r\u00e3i v\u00e0 tr\u1edf th\u00e0nh gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3 cho c\u00e1c k\u1ebft n\u1ed1i c\u01a1 b\u1ea3n, \u0111\u1ed3ng th\u1eddi gi\u00fap ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 s\u1eed d\u1ee5ng thu\u1eadn ti\u1ec7n trong nhi\u1ec1u t\u00ecnh hu\u1ed1ng.<\/span><\/p>\n

Nh\u1eefng chu\u1ea9n \u0111\u1ea7u k\u1ebft n\u1ed1i USB 2.0 ph\u1ed5 bi\u1ebfn<\/b><\/h2>\n

C\u00e1c chu\u1ea9n \u0111\u1ea7u k\u1ebft n\u1ed1i USB kh\u00f4ng ch\u1ec9 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eef li\u1ec7u \u1ed5n \u0111\u1ecbnh m\u00e0 c\u00f2n duy tr\u00ec t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1edbi \u0111a d\u1ea1ng s\u1ea3n ph\u1ea9m \u0111i\u1ec7n t\u1eed. Hi\u1ec3u r\u00f5 v\u1ec1 c\u00e1c chu\u1ea9n k\u1ebft n\u1ed1i gi\u00fap ng\u01b0\u1eddi d\u00f9ng d\u1ec5 d\u00e0ng l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb ph\u00f9 h\u1ee3p, t\u1ed1i \u01b0u h\u00f3a t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u v\u00e0 tr\u1ea3i nghi\u1ec7m s\u1eed d\u1ee5ng trong \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y.<\/span><\/p>\n

USB Type A<\/b><\/h3>\n

USB Standard-A l\u00e0 m\u1ed9t trong nh\u1eefng \u0111\u1ea7u k\u1ebft n\u1ed1i ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay. V\u1edbi h\u00ecnh d\u1ea1ng ch\u1eef nh\u1eadt \u0111\u1eb7c tr\u01b0ng, ch\u00fang xu\u1ea5t hi\u1ec7n tr\u00ean h\u1ea7u h\u1ebft laptop, m\u00e1y t\u00ednh \u0111\u1ec3 b\u00e0n v\u00e0 nhi\u1ec1u thi\u1ebft b\u1ecb ngo\u1ea1i vi kh\u00e1c. \u0110i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a USB Type A l\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch linh ho\u1ea1t, c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi c\u1ea3 chu\u1ea9n USB 3.0 ho\u1eb7c USB 1.1 m\u00e0 kh\u00f4ng g\u1eb7p tr\u1edf ng\u1ea1i.<\/span><\/p>\n

USB Type B<\/b><\/h3>\n

\u0110\u00e2y l\u00e0 lo\u1ea1i k\u1ebft n\u1ed1i th\u01b0\u1eddng th\u1ea5y tr\u00ean m\u00e1y in, \u1ed5 c\u1ee9ng di \u0111\u1ed9ng v\u00e0 c\u00e1c thi\u1ebft b\u1ecb ngo\u1ea1i vi kh\u00e1c. H\u1ea7u h\u1ebft \u0111\u1ea7u c\u1eafm c\u00f3 h\u00ecnh vu\u00f4ng, tuy nhi\u00ean m\u1ed9t s\u1ed1 phi\u00ean b\u1ea3n nh\u1ecf h\u01a1n l\u1ea1i mang h\u00ecnh tr\u00f2n \u0111\u1eb7c tr\u01b0ng. USB Type B n\u1ed5i b\u1eadt v\u1edbi kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c, c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi \u1ed5 c\u1eafm USB 1.1 v\u00e0 USB 3.1, gi\u00fap s\u1eed d\u1ee5ng linh ho\u1ea1t h\u01a1n. M\u1eb7c d\u00f9 v\u1eady, nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a lo\u1ea1i n\u00e0y l\u00e0 kh\u00f4ng h\u1ed7 tr\u1ee3 tr\u1ef1c ti\u1ebfp chu\u1ea9n USB 3.0 Type B, gi\u1edbi h\u1ea1n m\u1ed9t ph\u1ea7n kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao.<\/span><\/p>\n

\"usb-2-0-2\"<\/picture><\/p>\n

USB Micro-A<\/b><\/h3>\n

\u0110\u1ea7u n\u1ed1i <\/span>USB 2.0 Micro-A <\/b>c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi \u1ed5 c\u1eafm USB Micro-AB v\u00e0 USB 3.0 Micro-AB, gi\u00fap ng\u01b0\u1eddi d\u00f9ng k\u1ebft n\u1ed1i linh ho\u1ea1t. Tuy nhi\u00ean, nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a lo\u1ea1i n\u00e0y l\u00e0 c\u00e1c \u0111\u1ea7u USB 3.0 Micro-AB kh\u00f4ng th\u1ec3 s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp v\u1edbi \u1ed5 c\u1eafm 2.0 Micro-AB, gi\u1edbi h\u1ea1n m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p truy\u1ec1n d\u1eef li\u1ec7u.\u00a0<\/span><\/p>\n

USB Micro-B<\/b><\/h3>\n

Kh\u00e1c v\u1edbi USB Type B truy\u1ec1n th\u1ed1ng, \u0111\u1ea7u n\u1ed1i Micro-B c\u00f3 h\u00ecnh d\u00e1ng v\u00e1t hai c\u1ea1nh, t\u01b0\u01a1ng t\u1ef1 m\u1ed9t ph\u1ea7n USB Type A, t\u1ea1o s\u1ef1 ti\u1ec7n l\u1ee3i khi k\u1ebft n\u1ed1i. \u0110\u1ea7u c\u1eafm USB Micro-B t\u01b0\u01a1ng th\u00edch v\u1edbi \u1ed5 c\u1eafm USB 3.0 Micro-B, gi\u00fap truy\u1ec1n d\u1eef li\u1ec7u linh ho\u1ea1t. Tuy nhi\u00ean, nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 c\u00e1c \u0111\u1ea7u USB 3.0 Micro-B kh\u00f4ng s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c v\u1edbi \u1ed5 c\u1eafm 2.0 Micro-B, gi\u1edbi h\u1ea1n kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c chu\u1ea9n kh\u00e1c nhau.<\/span><\/p>\n

\"usb-2-0-3\"<\/picture><\/p>\n

USB Mini A<\/b><\/h3>\n

USB Mini-A l\u00e0 m\u1ed9t lo\u1ea1i \u0111\u1ea7u k\u1ebft n\u1ed1i nh\u1ecf g\u1ecdn, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean c\u00e1c thi\u1ebft b\u1ecb di \u0111\u1ed9ng c\u1ee1 nh\u1ecf nh\u01b0 m\u00e1y \u1ea3nh, m\u00e1y nghe nh\u1ea1c ho\u1eb7c ph\u1ee5 ki\u1ec7n c\u1ea7m tay. \u0110i\u1ec3m \u0111\u1eb7c tr\u01b0ng c\u1ee7a chu\u1ea9n n\u00e0y l\u00e0 t\u00ednh t\u01b0\u01a1ng th\u00edch h\u1ea1n ch\u1ebf, ch\u1ec9 c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi \u1ed5 c\u1eafm USB Mini-A ho\u1eb7c Mini-AB, khi\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng \u0111\u00f4i khi g\u1eb7p kh\u00f3 kh\u0103n so v\u1edbi c\u00e1c lo\u1ea1i c\u1ed5ng ph\u1ed5 bi\u1ebfn kh\u00e1c. M\u1eb7c d\u00f9 kh\u00f4ng linh ho\u1ea1t b\u1eb1ng USB Type A ho\u1eb7c Micro-USB, Mini-A v\u1eabn mang l\u1ea1i gi\u1ea3i ph\u00e1p truy\u1ec1n d\u1eef li\u1ec7u \u1ed5n \u0111\u1ecbnh, ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng thi\u1ebft b\u1ecb y\u00eau c\u1ea7u k\u00edch th\u01b0\u1edbc nh\u1ecf v\u00e0 k\u1ebft n\u1ed1i ch\u1eafc ch\u1eafn.<\/span><\/p>\n

USB Mini B<\/b><\/h3>\n

USB Mini-B l\u00e0 phi\u00ean b\u1ea3n thu nh\u1ecf c\u1ee7a USB Type B, th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n tr\u00ean c\u00e1c thi\u1ebft b\u1ecb di \u0111\u1ed9ng ho\u1eb7c ph\u1ee5 ki\u1ec7n c\u1ea7m tay, nh\u01b0ng r\u1ea5t \u00edt khi g\u1eb7p trong th\u1ef1c t\u1ebf do kh\u00f3 s\u1eed d\u1ee5ng. \u0110i\u1ec3m h\u1ea1n ch\u1ebf ch\u00ednh c\u1ee7a chu\u1ea9n n\u00e0y l\u00e0 t\u00ednh t\u01b0\u01a1ng th\u00edch h\u1ea1n ch\u1ebf, ch\u1ec9 c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi \u1ed5 c\u1eafm USB Mini-B ho\u1eb7c Mini-AB. M\u1eb7c d\u00f9 v\u1eady, Mini-B v\u1eabn \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eef li\u1ec7u \u1ed5n \u0111\u1ecbnh v\u00e0 an to\u00e0n, ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng thi\u1ebft b\u1ecb y\u00eau c\u1ea7u k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn.<\/span><\/p>\n

C\u00e1ch nh\u1eadn bi\u1ebft USB 2.0 v\u00e0 USB 3.0 \u0111\u01a1n gi\u1ea3n<\/b><\/h2>\n

Th\u00f4ng th\u01b0\u1eddng, USB chu\u1ea9n 2.0 c\u00f3 m\u00e0u \u0111en truy\u1ec1n th\u1ed1ng, trong khi USB 3.0 l\u1ea1i n\u1ed5i b\u1eadt v\u1edbi m\u00e0u xanh, \u0111\u00f4i khi c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f2n th\u00eam c\u00e1c t\u00f4ng \u0111\u1ecf, v\u00e0ng nh\u1eb1m t\u1ea1o \u0111i\u1ec3m nh\u1ea5n, khi\u1ebfn USB 3.0 d\u1ec5 nh\u1eadn di\u1ec7n h\u01a1n. Ngo\u00e0i m\u00e0u s\u1eafc, bi\u1ec3u t\u01b0\u1ee3ng tr\u00ean \u0111\u1ea7u c\u00e1p c\u0169ng l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng. \u0110\u1ea7u c\u00e1p USB phi\u00ean b\u1ea3n 2 ch\u1ec9 c\u00f3 bi\u1ec3u t\u01b0\u1ee3ng USB th\u00f4ng th\u01b0\u1eddng, c\u00f2n USB 3.0 ngo\u00e0i bi\u1ec3u t\u01b0\u1ee3ng USB c\u00f2n xu\u1ea5t hi\u1ec7n k\u00fd hi\u1ec7u \u201cSS\u201d \u2013 vi\u1ebft t\u1eaft c\u1ee7a Super Speed, ph\u1ea3n \u00e1nh t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u v\u01b0\u1ee3t tr\u1ed9i.<\/span><\/p>\n

\"usb-2-0-4\"<\/picture><\/p>\n

M\u1ed9t c\u00e1ch kh\u00e1c \u0111\u1ec3 nh\u1eadn bi\u1ebft l\u00e0 d\u1ef1a tr\u00ean t\u00ednh n\u0103ng v\u00e0 hi\u1ec7u su\u1ea5t. USB 3.0 kh\u00f4ng ch\u1ec9 h\u1ed7 tr\u1ee3 s\u1ea1c th\u00f4ng minh m\u00e0 c\u00f2n c\u00f3 t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u l\u1edbn h\u01a1n nhi\u1ec1u so v\u1edbi chu\u1ea9n 2.0, l\u00ean t\u1edbi 600 MB\/s, trong khi chu\u1ea9n 2.0 ch\u1ec9 \u0111\u1ea1t kho\u1ea3ng 60 MB\/s. C\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n s\u1ea1c c\u0169ng kh\u00e1c nhau, gi\u00fap thi\u1ebft b\u1ecb n\u1ea1p n\u0103ng l\u01b0\u1ee3ng nhanh h\u01a1n khi s\u1eed d\u1ee5ng USB 3.0.<\/span><\/p>\n

USB 2.0 v\u00e0 USB 3.0 kh\u00e1c nhau nh\u1eefng g\u00ec?<\/b><\/h2>\n

USB 3.0 v\u00e0 2.0 \u0111\u1ec1u l\u00e0 chu\u1ea9n k\u1ebft n\u1ed1i ph\u1ed5 bi\u1ebfn, gi\u00fap trao \u0111\u1ed5i d\u1eef li\u1ec7u gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed m\u1ed9t c\u00e1ch nhanh ch\u00f3ng v\u00e0 ti\u1ec7n l\u1ee3i. Tuy c\u00f9ng ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n l\u00e0 truy\u1ec1n t\u1ea3i th\u00f4ng tin, hai lo\u1ea1i USB n\u00e0y c\u00f3 nhi\u1ec1u \u0111i\u1ec3m kh\u00e1c bi\u1ec7t v\u1ec1 hi\u1ec7u su\u1ea5t, thi\u1ebft k\u1ebf v\u00e0 kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 ngu\u1ed3n \u0111i\u1ec7n.<\/span><\/p>\n

USB 3.0 ra \u0111\u1eddi sau, c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9, \u0111\u1ed3ng th\u1eddi t\u1ed1i \u01b0u h\u00f3a kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eef li\u1ec7u, gi\u00fap g\u1eedi v\u00e0 nh\u1eadn th\u00f4ng tin \u0111\u1ed3ng th\u1eddi, trong khi k\u1ebft n\u1ed1i 2.0 v\u1eabn ho\u1ea1t \u0111\u1ed9ng theo c\u01a1 ch\u1ebf b\u00e1n song c\u00f4ng. Ngo\u00e0i ra, nh\u1eadn di\u1ec7n c\u1ed5ng, k\u00fd hi\u1ec7u tr\u00ean \u0111\u1ea7u n\u1ed1i hay c\u1ea5u t\u1ea1o b\u00ean trong c\u0169ng l\u00e0 c\u00e1ch \u0111\u1ec3 ph\u00e2n bi\u1ec7t hai chu\u1ea9n.<\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n
Ti\u00eau ch\u00ed<\/b><\/td>\nUSB 2.0<\/b><\/td>\nUSB 3.0<\/b><\/td>\n<\/tr>\n
T\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ed1i \u0111a<\/span><\/td>\n480 Mbps (~60 MB\/s)<\/span><\/td>\n5 Gbps (~625 MB\/s)<\/span><\/td>\n<\/tr>\n
M\u00e0u s\u1eafc nh\u1eadn di\u1ec7n<\/span><\/td>\nTh\u01b0\u1eddng \u0110en ho\u1eb7c Tr\u1eafng<\/span><\/td>\nTh\u01b0\u1eddng Xanh d\u01b0\u01a1ng<\/span><\/td>\n<\/tr>\n
K\u00fd hi\u1ec7u<\/span><\/td>\nBi\u1ec3u t\u01b0\u1ee3ng USB th\u00f4ng th\u01b0\u1eddng<\/span><\/td>\nC\u00f3 th\u00eam ch\u1eef “SS” (SuperSpeed)<\/span><\/td>\n<\/tr>\n
C\u1ea5u t\u1ea1o (s\u1ed1 d\u00e2y)<\/span><\/td>\n4 d\u00e2y<\/span><\/td>\n9 d\u00e2y<\/span><\/td>\n<\/tr>\n
C\u01a1 ch\u1ebf truy\u1ec1n d\u1eef li\u1ec7u<\/span><\/td>\nB\u00e1n song c\u00f4ng<\/span><\/td>\nTo\u00e0n song c\u00f4ng<\/span><\/td>\n<\/tr>\n
Ngu\u1ed3n \u0111i\u1ec7n c\u1ea5p<\/span><\/td>\nT\u1ed1i \u0111a 500 mA<\/span><\/td>\nT\u1ed1i \u0111a 900 mA<\/span><\/td>\n<\/tr>\n
Gi\u00e1 th\u00e0nh<\/span><\/td>\nR\u1ebb h\u01a1n<\/span><\/td>\nCao h\u01a1n m\u1ed9t ch\u00fat<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

USB 3.0 c\u00f3 c\u1eafm v\u00e0o c\u1ed5ng USB 2.0 \u0111\u01b0\u1ee3c kh\u00f4ng?<\/b><\/h2>\n

USB 3.0 ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 c\u1eafm v\u00e0o c\u1ed5ng 2.0 v\u00e0 v\u1eabn ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng. Tuy nhi\u00ean, khi s\u1eed d\u1ee5ng theo c\u00e1ch n\u00e0y, t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u s\u1ebd b\u1ecb gi\u1edbi h\u1ea1n theo chu\u1ea9n 2.0, t\u1ed1i \u0111a kho\u1ea3ng 480 Mbps, kh\u00f4ng th\u1ec3 t\u1eadn d\u1ee5ng \u0111\u01b0\u1ee3c b\u0103ng th\u00f4ng cao h\u01a1n c\u1ee7a USB 3.0.<\/span><\/p>\n

\"usb-2-0-5\"<\/picture><\/p>\n

Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu b\u1ea1n k\u1ebft n\u1ed1i m\u1ed9t thi\u1ebft b\u1ecb c\u1ed5ng 2.0 v\u00e0o c\u1ed5ng USB 3.0, thi\u1ebft b\u1ecb v\u1eabn d\u00f9ng \u0111\u01b0\u1ee3c b\u00ecnh th\u01b0\u1eddng, nh\u01b0ng t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i c\u0169ng ch\u1ec9 d\u1eebng l\u1ea1i \u1edf m\u1ee9c c\u1ee7a c\u1ed5ng 2.0. Do \u0111\u00f3, vi\u1ec7c c\u1eafm nh\u1ea7m chu\u1ea9n kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng, nh\u01b0ng hi\u1ec7u su\u1ea5t s\u1ebd b\u1ecb h\u1ea1n ch\u1ebf.<\/span><\/p>\n

\u0110\u1ec3 t\u1eadn d\u1ee5ng to\u00e0n b\u1ed9 l\u1ee3i \u00edch v\u1ec1 t\u1ed1c \u0111\u1ed9 v\u00e0 t\u00ednh n\u0103ng c\u1ee7a USB 3.0, c\u1ea3 thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i l\u1eabn c\u1ed5ng tr\u00ean m\u00e1y t\u00ednh ho\u1eb7c laptop \u0111\u1ec1u ph\u1ea3i h\u1ed7 tr\u1ee3 chu\u1ea9n n\u00e0y. C\u1ed5ng USB 3.0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c nh\u1eadn bi\u1ebft d\u1ec5 d\u00e0ng nh\u1edd m\u00e0u xanh \u0111\u1eb7c tr\u01b0ng. Hi\u1ec3u r\u00f5 nguy\u00ean t\u1eafc t\u01b0\u01a1ng th\u00edch n\u00e0y gi\u00fap ng\u01b0\u1eddi d\u00f9ng l\u1ef1a ch\u1ecdn chu\u1ea9n ph\u00f9 h\u1ee3p, \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n t\u1ea3i nhanh ch\u00f3ng v\u00e0 \u1ed5n \u0111\u1ecbnh, \u0111\u1ed3ng th\u1eddi v\u1eabn k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c v\u1edbi c\u00e1c thi\u1ebft b\u1ecb c\u0169 m\u00e0 kh\u00f4ng g\u1eb7p tr\u1edf ng\u1ea1i.<\/span><\/p>\n

N\u00ean ch\u1ecdn USB 2.0 hay 3.0?<\/b><\/h2>\n

C\u1ed5ng 2.0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u01b0u ti\u00ean khi chi ph\u00ed h\u1ea1n ch\u1ebf, b\u1edfi gi\u00e1 th\u00e0nh r\u1ebb h\u01a1n, d\u1ec5 ti\u1ebfp c\u1eadn v\u1edbi h\u1ea7u h\u1ebft ng\u01b0\u1eddi d\u00f9ng. Chu\u1ea9n n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c thi\u1ebft b\u1ecb kh\u00f4ng y\u00eau c\u1ea7u t\u1ed1c \u0111\u1ed9 cao nh\u01b0 chu\u1ed9t, b\u00e0n ph\u00edm, m\u00e1y in ho\u1eb7c loa USB. \u0110\u1ed3ng th\u1eddi, n\u1ebfu m\u1ee5c \u0111\u00edch ch\u00ednh ch\u1ec9 l\u00e0 l\u01b0u tr\u1eef t\u00e0i li\u1ec7u nh\u1eb9, v\u00ed d\u1ee5 nh\u01b0 file Word, Excel hay v\u00e0i b\u00e0i nh\u1ea1c MP3, chu\u1ea9n 2.0 v\u1eabn \u0111\u00e1p \u1ee9ng t\u1ed1t, \u0111\u1ea3m b\u1ea3o truy\u1ec1n t\u1ea3i \u1ed5n \u0111\u1ecbnh m\u00e0 kh\u00f4ng t\u1ed1n qu\u00e1 nhi\u1ec1u chi ph\u00ed.<\/span><\/p>\n

\"usb-2-0-6\"<\/picture><\/p>\n

Ng\u01b0\u1ee3c l\u1ea1i, USB 3.0 l\u00e0 l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng khi t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u l\u00e0 \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u. N\u1ebfu th\u01b0\u1eddng xuy\u00ean sao ch\u00e9p phim, video, b\u1ed9 c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m ho\u1eb7c th\u1ef1c hi\u1ec7n sao l\u01b0u to\u00e0n b\u1ed9 d\u1eef li\u1ec7u, chu\u1ea9n n\u00e0y s\u1ebd ti\u1ebft ki\u1ec7m \u0111\u00e1ng k\u1ec3 th\u1eddi gian. USB 3.0 c\u0169ng r\u1ea5t h\u1eefu \u00edch khi d\u00f9ng l\u00e0m USB c\u00e0i h\u1ec7 \u0111i\u1ec1u h\u00e0nh, gi\u00fap qu\u00e1 tr\u00ecnh c\u00e0i \u0111\u1eb7t nhanh ch\u00f3ng h\u01a1n. Ngo\u00e0i ra, v\u1edbi d\u00e2n thi\u1ebft k\u1ebf, d\u1ef1ng phim ho\u1eb7c c\u00e1c c\u00f4ng vi\u1ec7c li\u00ean quan \u0111\u1ebfn file d\u1ef1 \u00e1n dung l\u01b0\u1ee3ng l\u1edbn, USB 3.0 cho ph\u00e9p di chuy\u1ec3n d\u1eef li\u1ec7u h\u00e0ng ch\u1ee5c GB ch\u1ec9 trong th\u1eddi gian ng\u1eafn, n\u00e2ng cao hi\u1ec7u su\u1ea5t l\u00e0m vi\u1ec7c.<\/span><\/p>\n

Hi\u1ec3u r\u00f5 nhu c\u1ea7u th\u1ef1c t\u1ebf s\u1ebd gi\u00fap ng\u01b0\u1eddi d\u00f9ng ch\u1ecdn chu\u1ea9n ph\u00f9 h\u1ee3p, v\u1eeba t\u1ed1i \u01b0u hi\u1ec7u n\u0103ng, v\u1eeba ti\u1ebft ki\u1ec7m chi ph\u00ed, \u0111\u1ed3ng th\u1eddi \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u00e1ng tin c\u1eady cho t\u1eebng thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i.<\/span><\/p>\n

\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn c\u1ee7a USB 2.0 trong \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y<\/b><\/h2>\n

C\u1ed5ng k\u1ebft n\u1ed1i 2.0 l\u00e0 chu\u1ea9n k\u1ebft n\u1ed1i ph\u1ed5 bi\u1ebfn, xu\u1ea5t hi\u1ec7n trong h\u1ea7u h\u1ebft thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed hi\u1ec7n nay, t\u1eeb laptop, m\u00e1y t\u00ednh \u0111\u1ec3 b\u00e0n cho \u0111\u1ebfn c\u00e1c ph\u1ee5 ki\u1ec7n nh\u1ecf g\u1ecdn. Nh\u1edd kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eef li\u1ec7u \u1ed5n \u0111\u1ecbnh v\u00e0 d\u1ec5 s\u1eed d\u1ee5ng, chu\u1ea9n n\u00e0y gi\u00fap k\u1ebft n\u1ed1i chu\u1ed9t, b\u00e0n ph\u00edm, m\u00e1y in hay loa USB m\u1ed9t c\u00e1ch thu\u1eadn ti\u1ec7n, \u0111\u1ea3m b\u1ea3o c\u00e1c thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng tr\u01a1n tru m\u00e0 kh\u00f4ng g\u1eb7p tr\u1edf ng\u1ea1i v\u1ec1 t\u01b0\u01a1ng th\u00edch.<\/span><\/p>\n

\"usb-2-0-7\"<\/picture><\/p>\n

Ngo\u00e0i ra, c\u1ed5ng 2.0 c\u00f2n \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong vi\u1ec7c l\u01b0u tr\u1eef v\u00e0 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u. C\u00e1c thi\u1ebft b\u1ecb nh\u01b0 \u1ed5 flash, th\u1ebb nh\u1edb g\u1eafn ngo\u00e0i ho\u1eb7c \u1ed5 c\u1ee9ng di \u0111\u1ed9ng t\u1eadn d\u1ee5ng chu\u1ea9n n\u00e0y \u0111\u1ec3 sao ch\u00e9p v\u00e0 l\u01b0u gi\u1eef t\u00e0i li\u1ec7u, h\u00ecnh \u1ea3nh, nh\u1ea1c hay c\u00e1c file v\u0103n ph\u00f2ng nh\u1ecf g\u1ecdn. Chu\u1ea9n n\u00e0y \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng nhu c\u1ea7u kh\u00f4ng \u0111\u00f2i h\u1ecfi t\u1ed1c \u0111\u1ed9 truy\u1ec1n qu\u00e1 cao.<\/span><\/p>\n

C\u1ed5ng 2.0 c\u0169ng h\u1eefu \u00edch khi c\u1eadp nh\u1eadt ph\u1ea7n m\u1ec1m, c\u00e0i \u0111\u1eb7t \u1ee9ng d\u1ee5ng ho\u1eb7c k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb ngo\u1ea1i vi kh\u00e1c. Nh\u1edd thi\u1ebft k\u1ebf ph\u1ed5 qu\u00e1t v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c v\u1edbi c\u00e1c chu\u1ea9n USB c\u0169 h\u01a1n, c\u1ed5ng 2.0 v\u1eabn gi\u1eef vai tr\u00f2 quan tr\u1ecdng trong \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y, gi\u00fap ng\u01b0\u1eddi d\u00f9ng k\u1ebft n\u1ed1i thi\u1ebft b\u1ecb m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng, ti\u1ec7n l\u1ee3i v\u00e0 \u1ed5n \u0111\u1ecbnh.<\/span><\/p>\n

K\u1ebft lu\u1eadn<\/b><\/h2>\n

T\u00f3m l\u1ea1i, <\/span>USB 2.0<\/b> v\u1eabn gi\u1eef v\u1ecb tr\u00ed quan tr\u1ecdng trong \u0111\u1eddi s\u1ed1ng c\u00f4ng ngh\u1ec7 nh\u1edd kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch r\u1ed9ng r\u00e3i, gi\u00e1 th\u00e0nh h\u1ee3p l\u00fd v\u00e0 \u0111\u00e1p \u1ee9ng t\u1ed1t nhu c\u1ea7u s\u1eed d\u1ee5ng c\u01a1 b\u1ea3n. D\u00f9 kh\u00f4ng nhanh b\u1eb1ng USB 3.0, chu\u1ea9n n\u00e0y v\u1eabn ho\u00e0n to\u00e0n \u0111\u1ee7 \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 chu\u1ed9t, b\u00e0n ph\u00edm, m\u00e1y in ho\u1eb7c l\u01b0u tr\u1eef d\u1eef li\u1ec7u nh\u1eb9.<\/span><\/p>\n

Xem th\u00eam:<\/b><\/p>\n