Online Data Transfer Units Converter
How to Convert from IDE (PIO mode 4) to IDE (UDMA mode 4)?
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How to Convert from IDE (PIO mode 4) to IDE (UDMA mode 4)?

Learn to convert data transfer rates from IDE (PIO mode 4), a CPU-controlled timing mode, to the faster IDE (UDMA mode 4), using a precise conversion factor. Understand their uses, key differences, and how this helps in legacy system management.

Please check your input. It must be a valid numeric value.

IDE (PIO mode 4) to IDE (UDMA mode 4) Conversion Table

IDE (PIO mode 4) IDE (UDMA mode 4)

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.
Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.
Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.
IDE (PIO mode 4) to IDE (UDMA mode 4) Conversion Table
IDE (PIO mode 4) IDE (UDMA mode 4)

Explore More Data Transfer Units Converter

  1. How to convert from bit/second [b/s] to IDE (PIO mode 4)?
  2. How to convert from IDE (PIO mode 4) to bit/second [b/s]?
  3. How to convert from byte/second [B/s] to IDE (PIO mode 4)?
  4. How to convert from IDE (PIO mode 4) to byte/second [B/s]?
  5. How to convert from kilobit/second (SI def.) to IDE (PIO mode 4)?
  6. How to convert from IDE (PIO mode 4) to kilobit/second (SI def.)?
  7. How to convert from kilobyte/second (SI def.) to IDE (PIO mode 4)?
  8. How to convert from IDE (PIO mode 4) to kilobyte/second (SI def.)?
  9. How to convert from kilobit/second [kb/s] to IDE (PIO mode 4)?
  10. How to convert from IDE (PIO mode 4) to kilobit/second [kb/s]?
  11. How to convert from kilobyte/second [kB/s] to IDE (PIO mode 4)?
  12. How to convert from IDE (PIO mode 4) to kilobyte/second [kB/s]?
  13. How to convert from megabit/second (SI def.) to IDE (PIO mode 4)?
  14. How to convert from IDE (PIO mode 4) to megabit/second (SI def.)?
  15. How to convert from megabyte/second (SI def.) to IDE (PIO mode 4)?
  16. How to convert from IDE (PIO mode 4) to megabyte/second (SI def.)?
  17. How to convert from megabit/second [Mb/s] to IDE (PIO mode 4)?
  18. How to convert from IDE (PIO mode 4) to megabit/second [Mb/s]?
  19. How to convert from megabyte/second [MB/s] to IDE (PIO mode 4)?
  20. How to convert from IDE (PIO mode 4) to megabyte/second [MB/s]?
  21. How to convert from gigabit/second (SI def.) to IDE (PIO mode 4)?
  22. How to convert from IDE (PIO mode 4) to gigabit/second (SI def.)?
  23. How to convert from gigabyte/second (SI def.) to IDE (PIO mode 4)?
  24. How to convert from IDE (PIO mode 4) to gigabyte/second (SI def.)?
  25. How to convert from gigabit/second [Gb/s] to IDE (PIO mode 4)?
  26. How to convert from IDE (PIO mode 4) to gigabit/second [Gb/s]?
  27. How to convert from gigabyte/second [GB/s] to IDE (PIO mode 4)?
  28. How to convert from IDE (PIO mode 4) to gigabyte/second [GB/s]?
  29. How to convert from terabit/second (SI def.) to IDE (PIO mode 4)?
  30. How to convert from IDE (PIO mode 4) to terabit/second (SI def.)?
  31. How to convert from terabyte/second (SI def.) to IDE (PIO mode 4)?
  32. How to convert from IDE (PIO mode 4) to terabyte/second (SI def.)?
  33. How to convert from terabit/second [Tb/s] to IDE (PIO mode 4)?
  34. How to convert from IDE (PIO mode 4) to terabit/second [Tb/s]?
  35. How to convert from terabyte/second [TB/s] to IDE (PIO mode 4)?
  36. How to convert from IDE (PIO mode 4) to terabyte/second [TB/s]?
  37. How to convert from ethernet to IDE (PIO mode 4)?
  38. How to convert from IDE (PIO mode 4) to ethernet?
  39. How to convert from ethernet (fast) to IDE (PIO mode 4)?
  40. How to convert from IDE (PIO mode 4) to ethernet (fast)?
  41. How to convert from ethernet (gigabit) to IDE (PIO mode 4)?
  42. How to convert from IDE (PIO mode 4) to ethernet (gigabit)?
  43. How to convert from OC1 to IDE (PIO mode 4)?
  44. How to convert from IDE (PIO mode 4) to OC1?
  45. How to convert from OC3 to IDE (PIO mode 4)?
  46. How to convert from IDE (PIO mode 4) to OC3?
  47. How to convert from OC12 to IDE (PIO mode 4)?
  48. How to convert from IDE (PIO mode 4) to OC12?
  49. How to convert from OC24 to IDE (PIO mode 4)?
  50. How to convert from IDE (PIO mode 4) to OC24?
  51. How to convert from OC48 to IDE (PIO mode 4)?
  52. How to convert from IDE (PIO mode 4) to OC48?
  53. How to convert from OC192 to IDE (PIO mode 4)?
  54. How to convert from IDE (PIO mode 4) to OC192?
  55. How to convert from OC768 to IDE (PIO mode 4)?
  56. How to convert from IDE (PIO mode 4) to OC768?
  57. How to convert from ISDN (single channel) to IDE (PIO mode 4)?
  58. How to convert from IDE (PIO mode 4) to ISDN (single channel)?
  59. How to convert from ISDN (dual channel) to IDE (PIO mode 4)?
  60. How to convert from IDE (PIO mode 4) to ISDN (dual channel)?
  61. How to convert from modem (110) to IDE (PIO mode 4)?
  62. How to convert from IDE (PIO mode 4) to modem (110)?
  63. How to convert from modem (300) to IDE (PIO mode 4)?
  64. How to convert from IDE (PIO mode 4) to modem (300)?
  65. How to convert from modem (1200) to IDE (PIO mode 4)?
  66. How to convert from IDE (PIO mode 4) to modem (1200)?
  67. How to convert from modem (2400) to IDE (PIO mode 4)?
  68. How to convert from IDE (PIO mode 4) to modem (2400)?
  69. How to convert from modem (9600) to IDE (PIO mode 4)?
  70. How to convert from IDE (PIO mode 4) to modem (9600)?
  71. How to convert from modem (14.4k) to IDE (PIO mode 4)?
  72. How to convert from IDE (PIO mode 4) to modem (14.4k)?
  73. How to convert from modem (28.8k) to IDE (PIO mode 4)?
  74. How to convert from IDE (PIO mode 4) to modem (28.8k)?
  75. How to convert from modem (33.6k) to IDE (PIO mode 4)?
  76. How to convert from IDE (PIO mode 4) to modem (33.6k)?
  77. How to convert from modem (56k) to IDE (PIO mode 4)?
  78. How to convert from IDE (PIO mode 4) to modem (56k)?
  79. How to convert from SCSI (Async) to IDE (PIO mode 4)?
  80. How to convert from IDE (PIO mode 4) to SCSI (Async)?
  81. How to convert from SCSI (Sync) to IDE (PIO mode 4)?
  82. How to convert from IDE (PIO mode 4) to SCSI (Sync)?
  83. How to convert from SCSI (Fast) to IDE (PIO mode 4)?
  84. How to convert from IDE (PIO mode 4) to SCSI (Fast)?
  85. How to convert from SCSI (Fast Ultra) to IDE (PIO mode 4)?
  86. How to convert from IDE (PIO mode 4) to SCSI (Fast Ultra)?
  87. How to convert from SCSI (Fast Wide) to IDE (PIO mode 4)?
  88. How to convert from IDE (PIO mode 4) to SCSI (Fast Wide)?
  89. How to convert from SCSI (Fast Ultra Wide) to IDE (PIO mode 4)?
  90. How to convert from IDE (PIO mode 4) to SCSI (Fast Ultra Wide)?
  91. How to convert from SCSI (Ultra-2) to IDE (PIO mode 4)?
  92. How to convert from IDE (PIO mode 4) to SCSI (Ultra-2)?
  93. How to convert from SCSI (Ultra-3) to IDE (PIO mode 4)?
  94. How to convert from IDE (PIO mode 4) to SCSI (Ultra-3)?
  95. How to convert from SCSI (LVD Ultra80) to IDE (PIO mode 4)?
  96. How to convert from IDE (PIO mode 4) to SCSI (LVD Ultra80)?
  97. How to convert from SCSI (LVD Ultra160) to IDE (PIO mode 4)?
  98. How to convert from IDE (PIO mode 4) to SCSI (LVD Ultra160)?
  99. How to convert from IDE (PIO mode 0) to IDE (PIO mode 4)?
  100. How to convert from IDE (PIO mode 4) to IDE (PIO mode 0)?
  101. How to convert from IDE (PIO mode 1) to IDE (PIO mode 4)?
  102. How to convert from IDE (PIO mode 4) to IDE (PIO mode 1)?
  103. How to convert from IDE (PIO mode 2) to IDE (PIO mode 4)?
  104. How to convert from IDE (PIO mode 4) to IDE (PIO mode 2)?
  105. How to convert from IDE (PIO mode 3) to IDE (PIO mode 4)?
  106. How to convert from IDE (PIO mode 4) to IDE (PIO mode 3)?
  107. How to convert from IDE (DMA mode 0) to IDE (PIO mode 4)?
  108. How to convert from IDE (PIO mode 4) to IDE (DMA mode 0)?
  109. How to convert from IDE (DMA mode 1) to IDE (PIO mode 4)?
  110. How to convert from IDE (PIO mode 4) to IDE (DMA mode 1)?
  111. How to convert from IDE (DMA mode 2) to IDE (PIO mode 4)?
  112. How to convert from IDE (PIO mode 4) to IDE (DMA mode 2)?
  113. How to convert from IDE (UDMA mode 0) to IDE (PIO mode 4)?
  114. How to convert from IDE (PIO mode 4) to IDE (UDMA mode 0)?
  115. How to convert from IDE (UDMA mode 1) to IDE (PIO mode 4)?
  116. How to convert from IDE (PIO mode 4) to IDE (UDMA mode 1)?
  117. How to convert from IDE (UDMA mode 2) to IDE (PIO mode 4)?
  118. How to convert from IDE (PIO mode 4) to IDE (UDMA mode 2)?
  119. How to convert from IDE (UDMA mode 3) to IDE (PIO mode 4)?
  120. How to convert from IDE (PIO mode 4) to IDE (UDMA mode 3)?
  121. How to convert from IDE (UDMA mode 4) to IDE (PIO mode 4)?
  122. How to convert from IDE (PIO mode 4) to IDE (UDMA mode 4)?
  123. How to convert from IDE (UDMA-33) to IDE (PIO mode 4)?
  124. How to convert from IDE (PIO mode 4) to IDE (UDMA-33)?
  125. How to convert from IDE (UDMA-66) to IDE (PIO mode 4)?
  126. How to convert from IDE (PIO mode 4) to IDE (UDMA-66)?
  127. How to convert from USB to IDE (PIO mode 4)?
  128. How to convert from IDE (PIO mode 4) to USB?
  129. How to convert from firewire (IEEE-1394) to IDE (PIO mode 4)?
  130. How to convert from IDE (PIO mode 4) to firewire (IEEE-1394)?
  131. How to convert from T0 (payload) to IDE (PIO mode 4)?
  132. How to convert from IDE (PIO mode 4) to T0 (payload)?
  133. How to convert from T0 (B8ZS payload) to IDE (PIO mode 4)?
  134. How to convert from IDE (PIO mode 4) to T0 (B8ZS payload)?
  135. How to convert from T1 (signal) to IDE (PIO mode 4)?
  136. How to convert from IDE (PIO mode 4) to T1 (signal)?
  137. How to convert from T1 (payload) to IDE (PIO mode 4)?
  138. How to convert from IDE (PIO mode 4) to T1 (payload)?
  139. How to convert from T1Z (payload) to IDE (PIO mode 4)?
  140. How to convert from IDE (PIO mode 4) to T1Z (payload)?
  141. How to convert from T1C (signal) to IDE (PIO mode 4)?
  142. How to convert from IDE (PIO mode 4) to T1C (signal)?
  143. How to convert from T1C (payload) to IDE (PIO mode 4)?
  144. How to convert from IDE (PIO mode 4) to T1C (payload)?
  145. How to convert from T2 (signal) to IDE (PIO mode 4)?
  146. How to convert from IDE (PIO mode 4) to T2 (signal)?
  147. How to convert from T3 (signal) to IDE (PIO mode 4)?
  148. How to convert from IDE (PIO mode 4) to T3 (signal)?
  149. How to convert from T3 (payload) to IDE (PIO mode 4)?
  150. How to convert from IDE (PIO mode 4) to T3 (payload)?
  151. How to convert from T3Z (payload) to IDE (PIO mode 4)?
  152. How to convert from IDE (PIO mode 4) to T3Z (payload)?
  153. How to convert from T4 (signal) to IDE (PIO mode 4)?
  154. How to convert from IDE (PIO mode 4) to T4 (signal)?
  155. How to convert from E.P.T.A. 1 (signal) to IDE (PIO mode 4)?
  156. How to convert from IDE (PIO mode 4) to E.P.T.A. 1 (signal)?
  157. How to convert from E.P.T.A. 1 (payload) to IDE (PIO mode 4)?
  158. How to convert from IDE (PIO mode 4) to E.P.T.A. 1 (payload)?
  159. How to convert from E.P.T.A. 2 (signal) to IDE (PIO mode 4)?
  160. How to convert from IDE (PIO mode 4) to E.P.T.A. 2 (signal)?
  161. How to convert from E.P.T.A. 2 (payload) to IDE (PIO mode 4)?
  162. How to convert from IDE (PIO mode 4) to E.P.T.A. 2 (payload)?
  163. How to convert from E.P.T.A. 3 (signal) to IDE (PIO mode 4)?
  164. How to convert from IDE (PIO mode 4) to E.P.T.A. 3 (signal)?
  165. How to convert from E.P.T.A. 3 (payload) to IDE (PIO mode 4)?
  166. How to convert from IDE (PIO mode 4) to E.P.T.A. 3 (payload)?
  167. How to convert from H0 to IDE (PIO mode 4)?
  168. How to convert from IDE (PIO mode 4) to H0?
  169. How to convert from H11 to IDE (PIO mode 4)?
  170. How to convert from IDE (PIO mode 4) to H11?
  171. How to convert from H12 to IDE (PIO mode 4)?
  172. How to convert from IDE (PIO mode 4) to H12?
  173. How to convert from Virtual Tributary 1 (signal) to IDE (PIO mode 4)?
  174. How to convert from IDE (PIO mode 4) to Virtual Tributary 1 (signal)?
  175. How to convert from Virtual Tributary 1 (payload) to IDE (PIO mode 4)?
  176. How to convert from IDE (PIO mode 4) to Virtual Tributary 1 (payload)?
  177. How to convert from Virtual Tributary 2 (signal) to IDE (PIO mode 4)?
  178. How to convert from IDE (PIO mode 4) to Virtual Tributary 2 (signal)?
  179. How to convert from Virtual Tributary 2 (payload) to IDE (PIO mode 4)?
  180. How to convert from IDE (PIO mode 4) to Virtual Tributary 2 (payload)?
  181. How to convert from Virtual Tributary 6 (signal) to IDE (PIO mode 4)?
  182. How to convert from IDE (PIO mode 4) to Virtual Tributary 6 (signal)?
  183. How to convert from Virtual Tributary 6 (payload) to IDE (PIO mode 4)?
  184. How to convert from IDE (PIO mode 4) to Virtual Tributary 6 (payload)?
  185. How to convert from STS1 (signal) to IDE (PIO mode 4)?
  186. How to convert from IDE (PIO mode 4) to STS1 (signal)?
  187. How to convert from STS1 (payload) to IDE (PIO mode 4)?
  188. How to convert from IDE (PIO mode 4) to STS1 (payload)?
  189. How to convert from STS3 (signal) to IDE (PIO mode 4)?
  190. How to convert from IDE (PIO mode 4) to STS3 (signal)?
  191. How to convert from STS3 (payload) to IDE (PIO mode 4)?
  192. How to convert from IDE (PIO mode 4) to STS3 (payload)?
  193. How to convert from STS3c (signal) to IDE (PIO mode 4)?
  194. How to convert from IDE (PIO mode 4) to STS3c (signal)?
  195. How to convert from STS3c (payload) to IDE (PIO mode 4)?
  196. How to convert from IDE (PIO mode 4) to STS3c (payload)?
  197. How to convert from STS12 (signal) to IDE (PIO mode 4)?
  198. How to convert from IDE (PIO mode 4) to STS12 (signal)?
  199. How to convert from STS24 (signal) to IDE (PIO mode 4)?
  200. How to convert from IDE (PIO mode 4) to STS24 (signal)?
  201. How to convert from STS48 (signal) to IDE (PIO mode 4)?
  202. How to convert from IDE (PIO mode 4) to STS48 (signal)?
  203. How to convert from STS192 (signal) to IDE (PIO mode 4)?
  204. How to convert from IDE (PIO mode 4) to STS192 (signal)?
  205. How to convert from STM-1 (signal) to IDE (PIO mode 4)?
  206. How to convert from IDE (PIO mode 4) to STM-1 (signal)?
  207. How to convert from STM-4 (signal) to IDE (PIO mode 4)?
  208. How to convert from IDE (PIO mode 4) to STM-4 (signal)?
  209. How to convert from STM-16 (signal) to IDE (PIO mode 4)?
  210. How to convert from IDE (PIO mode 4) to STM-16 (signal)?
  211. How to convert from STM-64 (signal) to IDE (PIO mode 4)?
  212. How to convert from IDE (PIO mode 4) to STM-64 (signal)?

What Is This Tool?

This converter helps translate data transfer values from IDE (PIO mode 4), an older CPU-driven mode for ATA storage devices, into IDE (UDMA mode 4), a faster Ultra DMA protocol used for reliable data transfer with compatible hardware.

How to Use This Tool?

  • Enter the value in IDE (PIO mode 4) units you want to convert
  • Select IDE (PIO mode 4) as the source unit and IDE (UDMA mode 4) as the target unit
  • Apply the conversion to see the equivalent data transfer value in IDE (UDMA mode 4)
  • Use results to assess performance differences or configure legacy devices

Key Features

  • Converts data transfer values between IDE (PIO mode 4) and IDE (UDMA mode 4)
  • Uses an exact theoretical conversion rate based on maximum throughput
  • Supports legacy and embedded system performance comparisons
  • Browser-based and easy to use without installation

Examples

  • 4 IDE (PIO mode 4) = 1.006 IDE (UDMA mode 4) using the conversion factor
  • 10 IDE (PIO mode 4) = 2.515 IDE (UDMA mode 4), illustrating speed improvement

Common Use Cases

  • Configuring or diagnosing legacy IDE/ATA drives and BIOS settings
  • Benchmarking performance differences when upgrading older PCs or embedded systems
  • Ensuring compatibility in retro-computing and industrial environments
  • Troubleshooting DMA modes for late 1990s to early 2000s PATA drives
  • Data recovery and maintenance of vintage storage hardware

Tips & Best Practices

  • Always verify cable compatibility, such as using 80-conductor IDE cables for UDMA modes
  • Understand that these units represent timing modes, not physical storage amounts
  • Use the tool to compare theoretical max transfer rates, not exact real-world speeds
  • Apply this conversion when assessing system upgrades or legacy hardware troubleshooting

Limitations

  • The conversion rate is theoretical and based on maximum data transfer throughput
  • These are timing modes defining transfer protocols, not units of storage
  • Actual performance may vary with hardware condition and system setup
  • Practical application depends on cable and system compatibility requirements

Frequently Asked Questions

What does IDE (PIO mode 4) mean?
IDE (PIO mode 4) is an older CPU-driven data transfer mode for ATA/IDE devices that controls timing and handshaking between host and drive with a theoretical throughput of about 16.7 MB/s.

What is IDE (UDMA mode 4)?
IDE (UDMA mode 4), also known as Ultra DMA/66, is a faster Parallel ATA transfer mode using Ultra DMA protocol with a maximum throughput of roughly 66.7 MB/s, requiring an 80-conductor cable.

Why convert from IDE (PIO mode 4) to IDE (UDMA mode 4)?
Converting helps compare and understand performance differences between older CPU-controlled transfers and newer Ultra DMA protocols, useful in legacy system upgrades and troubleshooting.

Key Terminology

IDE (PIO mode 4)
A Programmed Input/Output timing mode for ATA drives where the CPU directly controls data transfers with a max throughput of about 16.7 MB/s.
IDE (UDMA mode 4)
An Ultra DMA parallel ATA transfer mode offering up to about 66.7 MB/s throughput and requiring an 80-conductor IDE cable.
Conversion Rate
The factor used to translate values from IDE (PIO mode 4) to IDE (UDMA mode 4), specifically 1 IDE (PIO mode 4) equals 0.2515151515 IDE (UDMA mode 4).

Quick Knowledge Check

Which mode uses a CPU-driven data transfer control?
What is the approximate maximum throughput of IDE (UDMA mode 4)?
Why is an 80-conductor IDE cable important?

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