diff --git a/pyasic/device/models.py b/pyasic/device/models.py
index 8eab6655..24678d72 100644
--- a/pyasic/device/models.py
+++ b/pyasic/device/models.py
@@ -44,6 +44,7 @@ class AntminerModels(str, Enum):
     S19kProNoPIC = "S19k Pro No PIC"
     T19 = "T19"
     S21 = "S21"
+    S21Pro = "S21 Pro"
     T21 = "T21"
 
     def __str__(self):
diff --git a/pyasic/miners/antminer/bmminer/X21/S21.py b/pyasic/miners/antminer/bmminer/X21/S21.py
index 33b52f0e..26dcc2b7 100644
--- a/pyasic/miners/antminer/bmminer/X21/S21.py
+++ b/pyasic/miners/antminer/bmminer/X21/S21.py
@@ -15,8 +15,12 @@
 # ------------------------------------------------------------------------------
 
 from pyasic.miners.backends import AntminerModern
-from pyasic.miners.device.models import S21
+from pyasic.miners.device.models import S21, S21Pro
 
 
 class BMMinerS21(AntminerModern, S21):
     pass
+
+
+class BMMinerS21Pro(AntminerModern, S21Pro):
+    pass
diff --git a/pyasic/miners/antminer/bmminer/X21/__init__.py b/pyasic/miners/antminer/bmminer/X21/__init__.py
index 7662e46b..c9f78271 100644
--- a/pyasic/miners/antminer/bmminer/X21/__init__.py
+++ b/pyasic/miners/antminer/bmminer/X21/__init__.py
@@ -13,5 +13,5 @@
 #  See the License for the specific language governing permissions and         -
 #  limitations under the License.                                              -
 # ------------------------------------------------------------------------------
-from .S21 import BMMinerS21
+from .S21 import BMMinerS21, BMMinerS21Pro
 from .T21 import BMMinerT21
diff --git a/pyasic/miners/antminer/epic/X21/S21.py b/pyasic/miners/antminer/epic/X21/S21.py
index 1ffbec25..919dae92 100644
--- a/pyasic/miners/antminer/epic/X21/S21.py
+++ b/pyasic/miners/antminer/epic/X21/S21.py
@@ -15,8 +15,12 @@
 # ------------------------------------------------------------------------------
 
 from pyasic.miners.backends import ePIC
-from pyasic.miners.device.models import S21
+from pyasic.miners.device.models import S21, S21Pro
 
 
 class ePICS21(ePIC, S21):
     pass
+
+
+class ePICS21Pro(ePIC, S21Pro):
+    pass
diff --git a/pyasic/miners/antminer/epic/X21/__init__.py b/pyasic/miners/antminer/epic/X21/__init__.py
index 34fd9a0e..8d8aa07d 100644
--- a/pyasic/miners/antminer/epic/X21/__init__.py
+++ b/pyasic/miners/antminer/epic/X21/__init__.py
@@ -14,9 +14,7 @@
 #  limitations under the License.                                              -
 # ------------------------------------------------------------------------------
 
-from .S21 import (
-    ePICS21,
-)
+from .S21 import ePICS21, ePICS21Pro
 
 from .T21 import (
     ePICT21,
diff --git a/pyasic/miners/device/models/antminer/X21/S21.py b/pyasic/miners/device/models/antminer/X21/S21.py
index bc0c57a7..a3c9bb02 100644
--- a/pyasic/miners/device/models/antminer/X21/S21.py
+++ b/pyasic/miners/device/models/antminer/X21/S21.py
@@ -22,3 +22,10 @@ class S21(AntMinerMake):
 
     expected_chips = 108
     expected_fans = 4
+
+
+class S21Pro(AntMinerMake):
+    raw_model = MinerModel.ANTMINER.S21Pro
+
+    expected_chips = 65
+    expected_fans = 4
diff --git a/pyasic/miners/device/models/antminer/X21/__init__.py b/pyasic/miners/device/models/antminer/X21/__init__.py
index d9c49a2e..ddf65ac8 100644
--- a/pyasic/miners/device/models/antminer/X21/__init__.py
+++ b/pyasic/miners/device/models/antminer/X21/__init__.py
@@ -14,5 +14,5 @@
 #  limitations under the License.                                              -
 # ------------------------------------------------------------------------------
 
-from .S21 import S21
+from .S21 import S21, S21Pro
 from .T21 import T21
diff --git a/pyasic/miners/factory.py b/pyasic/miners/factory.py
index 4679d11d..bf5d25b2 100644
--- a/pyasic/miners/factory.py
+++ b/pyasic/miners/factory.py
@@ -97,6 +97,7 @@ MINER_CLASSES = {
         "ANTMINER S19K PRO": BMMinerS19KPro,
         "ANTMINER T19": BMMinerT19,
         "ANTMINER S21": BMMinerS21,
+        "ANTMINER S21 PRO": BMMinerS21Pro,
         "ANTMINER T21": BMMinerT21,
     },
     MinerTypes.WHATSMINER: {
@@ -401,6 +402,7 @@ MINER_CLASSES = {
         "ANTMINER S19K PRO": ePICS19kPro,
         "ANTMINER S19 XP": ePICS19XP,
         "ANTMINER S21": ePICS21,
+        "ANTMINER S21 PRO": ePICS21Pro,
         "ANTMINER T21": ePICT21,
         "BLOCKMINER 520I": ePICBlockMiner520i,
         "BLOCKMINER 720I": ePICBlockMiner720i,